The locking ring does not lock tightly
The locking ring does not lock tightly, Total:276 items.
The international standard classification for "The locking ring does not lock tightly" includes: Washers, locking elements , Rolling bearings , Bolts, screws, studs , Washers and other locking elements , Plugs, socket-outlets, couplers , Sewing machines and other equipment for the clothing industry , Road vehicle systems .
The Chinese standard classification for "The locking ring does not lock tightly" includes: Mechanical gadgets and components , Pipe fittings, clamps and seals , Fasteners , Manipulation system and its accessories , Fastener , Rolling bearing , Connecting piece for installation and wiring , Universal parts , Sewing machine , Fasteners .
Professional Standard - Aviation
- HB 6074-1996 fasten the screw nut
- HB 4-46-1976 fasten the screw nut
- HB 5906-1985 Pin lock turnbuckle
- HB 8230-2002 Control rod locked with locking gasket Locking gasket
- HB 5903-1985 Pin lock turnbuckle
- HB 5784-1983 fasten the screw nut
- HB 5785-1983 fasten the screw nut
- HB 5897-1985 Pin lock turnbuckle
- HB 4-46-1999 fasten the screw nut
- HB 5783-1983 fasten the screw nut
- HB 5900-1985 Pin lock turnbuckle
- HB 6075-1996 fasten the screw nut
- HB 6074-1986 fasten the screw nut
- HB 8224-2002 Specification of control rod parts locked with locking gasket
- HB 5916-1985 Pin lock turnbuckle
- HB 6073~6075-1996 fasten the screw nut
- HB 5913-1985 Pin lock turnbuckle
- HB 5912-1985 Pin lock turnbuckle
- HB 6075-1986 fasten the screw nut
- HB 5914-1985 Pin lock turnbuckle
- HB 5907-1985 Pin lock turnbuckle
- HB 4-46-2002 Nut locking
- HB 5908-1985 Pin lock turnbuckle
- HB 5910-1985 Pin lock turnbuckle
- HB 5901-1985 Pin lock turnbuckle
- HB 5898-1985 Pin lock turnbuckle
- HB 5909-1985 Pin lock turnbuckle
- HB 8225-2002 Control rod locked with locking gasket Pole
- HB 5925-1985 Locking Pin
- HB 8228-2002 Control rod locked with locking gasket Dangler tie-in with bearing
- HB 5902-1985 Pin lock turnbuckle
- HB 5905-1985 Pin lock turnbuckle
- HB 5915-1985 Pin lock turnbuckle
- HB 6073-1986 fasten the screw nut
- HB 6473-1990 Lock washer
- HB 5911-1985 Pin lock turnbuckle
- HB 8227-2002 Control rod locked with locking gasket two dangler tie-ins with bearing
- HB 8229-2002 Control rod locked with locking gasket Tie-in with bush
- HB 8226-2002 Control rod locked with locking gasket Dangler tie-in with bearing
- HB 5786-1983 fasten the screw nut
- HB 5904-1985 Pin lock turnbuckle
- HB 315-1987 Circular Nut with Lock Groove
- HB 6073-1996 fasten the screw nut
- HB 5899-1985 Pin lock turnbuckle
- HB 5928-1985 Technical Specification for Pin-Locked Turn-Buckle
- HB 5783-1982 fasten the screw nut
- HB 4-46-1983 fasten the screw nut
- HB 8124-2002 Nut locking titianium alloy
- HB 315-1971 Garden nut with locking groove
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 861.2-1987 Serrated lock washers interal teeth
- GB/T 9160.2-2006 Rolling bearings-Accessories-Locknuts and locking devices
- GB 883-1986 Taper pin lock retaining ring
- GB/T 885-1986 Lock rings with screw and circlip
- GB/T 956.2-1987 Countersunk serrated external toothed lock washers
- GB/T 43757-2024 Shrink disk
- GB/T 884-1986 Lock ring with screw
- GB/T 956.1-1987 Countersunk external toothed lock washers
- GB/T 24425.3-2009 Prevailing torque type wire thread inserts
- GB/T 5649-2008(英文版) Flared couplings—Lock nut and lockup washer
- GB/T 861.1-1987 Lock washers internal teeth
- GB 884-1986 screw lock retaining ring
- GB/T 862.1-1987 Lock washers external teeth
- GB/T 883-1986 Lock rings with cone pin
- GB 885-1986 Screw lock retaining ring with lock ring
- GB/T 862.2-1987 Serrated lock washers exteral teeth
Professional Standard - Aerospace
- QJ 3247.4-2005 Spring and lock washers in stainless steel - Part 4:Serrated lock washers external teeth
- QJ 191(3)-1978 通用零部件
- QJ 195-1980 Shear ring groove rivet locking groove and broken neck groove
- QJ 1265-1987 Nylon Insert Slotted Flat Point Locking Set Screws
- QJ 3246-2005 General specification for spring and lock washers in stainless steel
- QJ 3247.3-2005 Spring and lock washers in stainless steel - Part 3:Serrated lock washers internal teeth
- QJ 1249-1987 Hex head lock bolt
Professional Standard - Machinery
- JB/T 5829-1991 Die Ball Locking Round Punch
- JB/T 5399-1991 Nylon Insert Locking Nut and Screw Locking Part Structural Elements and Locking Torque
- JB/T 7272.2-1994 Locking handle seats
- JB/T 7919.3-1999 Rolling bearings.Accessories.Locknuts and locking devices
- JB/T 6259-2008 Self-locking electrical connector
- JB/T 1700.1-1991 Lock nut (1)
- JB/ZQ 4759-2006 Locknut - Trapezoidal thread
- JB/ZQ 4194-2006 Locking plate
- JB/T 1700.2-1991 Lock nut (2)
- JB/T 6259-1992 self-locking electrical connector
- JB/T 7272.2-2014 Locking Handle Seat
Military Standard of the People's Republic of China-General Armament Department
- GJB 859.37-1990 fasten the screw nut
Professional Standard - Railway
- TB/T 826-1991 Locknut
机械电子工业部
- JB 1700.1-1991 Locking nut(1)
- JB 1700.2-1991 Locking nut(2)
Taiwan Provincial Standard of the People's Republic of China
- CNS 5325-1980 Hatch Locking Bars
未注明发布机构
- DIN 981:1983 Rolling bearings; locknuts
- DIN 5406:1977 Rolling bearings - Lockwashers; Safety plate, Lockclip
- DIN 85339 E:2019-01 Hexagon head screw plugs - With retaining pin and bleeding hole
- DIN 6798:1971 Serrated lock washers
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
- GB/T 9160.2-2017 Rolling bearings―Accessories―Part 2:Locknuts and locking devices
Professional Standard - Nuclear Industry
- EJ 30-1975 Outrigger lock nut
Professional Standard - Speciality
- ZB T31008-1987 Internal Serrated Lock Washers
- ZB T31009-1987 External Serrated Lock Washers
Professional Standard - Light Industry
- QB/T 4297-2012 Testing method of locking force for fastening piece of sewing machine
Professional Standard - Automobile
- QC/T 885-2011 B type spring nuts - prevailing torque type
机械工业部
- JB/T 7919.7-1995 Technical specifications for rolling bearing accessories tapered bushings, lock nuts and lock washers
Group Standards of the People's Republic of China
- T/QGCML 4555-2024 Self-locking hand-tight drill chuck
Korean Agency for Technology and Standards (KATS)
- KS B 1069-1999 Grip ring
- KS B 2004-1982 Rolling bearings — Locknuts, lockwashers and lockplates
- KS B 2004-1997 Rolling bearings — Locknuts, lockwashers and lockplates
- KS B 2004-2022 Rolling bearings — Locknuts, lockwashers and lockplates
- KS B 2004-2017(2022) Rolling bearings — Locknuts, lockwashers and lockplates
- KS B 2004-2017 Rolling bearings — Locknuts, lockwashers and lockplates
- KS W 1634-2005 Serrated screw thread-locked in and ring locked insert
- KS W 1511-1989 Thimble and Shackle for Aircraft
- KS B 2045-1997 LOCK WASHERS AND LOCK PLATES FOR ROLLING BEARINGS
- KS W 1611-2004(2019) Aerospace-Serrated Ring Locked Stud
- KS W 1611-2019 Aerospace-Serrated Ring Locked Stud
- KS B 1324-1993 Spring lock washers
- KS R 9209-2006 Railway rolling stock-Tight lock couplers
- KS B 1324-2017 Spring lock washers
- KS B 1045-2009(2019) Lock nuts for machine tools
- KS B 1324-2022 Spring lock washers
- KS B 1325-2020 Toothed lock washers
- KS B 1324-2017(2022) Spring lock washers
- KS B 1045-2019 Lock nuts for machine tools
- KS B 1045-2009 Lock nuts for machine tools
Society of Automotive Engineers (SAE)
- SAE AS51990A-2005 Ring, Lock, Serrated FSC 5365
- SAE AS51997C-2020 RING, LOCK, SERRATED-HIGH STRENGTH
- SAE AS51997B-2005 Ring, Lock, Serrated-High Strength FSC 5365; UNS G41300; UNS G41400; UNS G87400; UNS S66286
- SAE J489-1990 Lock Washers
- SAE AMS7240-1940 LOCKWASHERS
- SAE AS6545-1-1955 AS6545 Locking Flange
- SAE AS2973-2-2015 AS2973 Locking Flange
- SAE AS2985-2-2015 AS2985 Locking Flange
- SAE AS4723-2007 Insert, Screw Thread, Self-Locking, UNS S66286, Key Locked, Plastic Self Locking Device, Solid Film Lubricant Procurement Specification For
- SAE AS6554-1-1955 AS6554 Locking Flange
- SAE AS6553-1-1955 AS6553 Locking Screw
- SAE AS122026B-2014 WASHER - LOCK, SPRING, CADMIUM PLATED
- SAE AGS207-12-2015 AGS207 Union Lock Nuts. (Steel)
- SAE AS2989-3-2015 AS2989 Locking Screw – Die Casting
- SAE AGS1710-5-1962 AGS1710 Locknut L.T. Union
German Institute for Standardization
- DIN 3134:1984 Toggle-type fasteners; with and without locking eye
- DIN 65394:2003-11 Aerospace - Thread inserts, with MJ thread, ring locked, screw-locking, corrosion-resisting steel; Classification: 900 MPa/1100 MPa/1250 MPa/1550 MPa/315 °C/425 °C
- DIN 3134:1984-07 Toggle-type fasteners; with and without locking eye
- DIN 65393:2002-11 Aerospace - Thread inserts with MJ thread, ring locked, screw-locking, steel; Classification: 900 MPa/1100 MPa/1250 MPa/1550 MPa/235 °C
- DIN 85339:1996 Hexagon head screw plugs - With retaining pin and bleeding hole
- DIN 14925:1983 Fire-fighting purposes; locking device
- DIN 14925:2020 Fire-fighting purposes - Locking device
- DIN 6798:1988 Serrated lock washers
- DIN 3115-2:1978 Face wrenches for slotted lock rings
- DIN ISO 10071-1:2010 Tools for pressing - Ball-lock punches - Part 1: Ball-lock punches for light duty (ISO 10071-1:2008)
- DIN 65112:1985 Aerospace; threaded inserts, locked and screw locking; technical specification
- DIN 86528:2017 Tab washers for screwed bonnet type valves
- DIN 5406:2011-04 Rolling bearings - Lockwashers; Safety plate, Lockclip
- DIN 70952:1976-05 Locking plates for groove nuts DIN 70852
- DIN 65397:2003-11 Aerospace - Thread inserts, with MJ thread, locked, screw-locking, corrosion-resisting steel; Classification: 1100 MPa/315 °C/425 °C
- DIN EN 1414:2000 Touch and close fasteners - Cycling procedure for subsequent testing (includes Amendment A1:2000); German version EN 1414:1996 + A1:2000
- DIN 981:2009-06 Rolling bearings - Locknuts
- DIN 981:1993 Rolling bearings; locknuts
GM North America
- GM GM6189P-1989 Test Procedure for the Locking Ability Performance of Nonmetallic Locking Element Type Prevailing Torque Lock Screws
- GM GM189M-1993 Lock Cylinder Gaskets
- GM VOL I SEC F-1968-a Section F - Lock Washers
- GM VOL II SEC V-1972-d Section V - Lock Washers
American Society for Testing and Materials (ASTM)
- ASTM F352-71 Specification for Lock Washers Made From Stainless Steel
ESDU - Engineering Sciences Data Unit
- ESDU 14002-2012 Lock nuts and other thread locking devices
- ESDU 87023-1987 Lock nuts and other thread locking devices.
SAE - SAE International
- SAE AS51997A-2005 Ring@ Lock@ Serrated-High Strength
- SAE AS51997-2001 Ring@ Lock@ Serrated-High Strength
- SAE J489B-1974 LOCK WASHERS
- SAE AS3078A-1996 FITTING, INSERT, FLUID CONNECTION, AS5202 BOSS TO RING LOCKED BOSS
HU-MSZT
- MSZ 9100-1958 Tightened latch lock (lock)
- MNOSZ 9146-1954 Furniture locks. Tightened cabinet and drawer locks
- MNOSZ 9143-1954 Furniture locks. Tightened cabinet and drawer locks
- MSZ 7014-1961 Precise locking screw
AIA/NAS - Aerospace Industries Association of America Inc.
- NAS1080-1960 COLLAR-LOCKBOLT (FOR PULL TYPE AND STUMP TYPE LOCKBOLT) (Rev 1)
- NAS6703-6720-1994 BOLT@ HEX HEAD@ CLOSE TOLERANCE@ A286 CRES@ LONG THREADS@ SELF-LOCKING AND NONLOCKING (Rev 7)
- NAS6703-6720-1992 BOLT@ HEX HEAD@ CLOSE TOLERANCE@ A286 CRES@ LONG THREAD@ SELF-LOCKING AND NONLOCKING (Rev 5)
- NASM229-1998 Fasteners - Interlocking Slide
- NAS6703-6720-1987 BOLT@ HEX HEAD@ CLOSE TOLERANCE@ A286 CRES@ LONG THREADS@ SELF-LOCKING AND NONLOCKING (Rev 4)
- NAS1080-1969 COLLAR@ SWAGE LOCKING (FOR PULL TYPE AND STUMP TYPE LOCKBOLTS) (Rev 3)
- NAS1080-1963 COLLAR@ SWAGE LOCKING (FOR PULL TYPE AND STUMP TYPE LOCKBOLT) (Rev 2)
- NASM45938/3-1999 Nut@ Plain@ Clinch and Nut@ Self-Locking@ Clinch (Self Clinching@ Knurled Collar@ 450 Degrees F and 600 Degrees F)
- NAS7800-7806-2012 BOLT@ PAN HEAD@ CLOSE TOLERANCE@ SHORT THREAD@ CRUCIFORM RECESS@ A286 CRES@ SELF-LOCKING AND NON-LOCKING (Rev 7)
- NAS6603-6620-1993 BOLT@ HEX HEAD@ CLOSE TOLERANCE@ ALLOY STEEL@ LONG THREAD@ SELF-LOCKING AND NONLOCKING (Rev 6)
Association Francaise de Normalisation
- NF E25-540:2002 Fasteners - Nut lock.
- NF E25-540:2010 Fasteners - Nut lock.
- NF E27-164:1976 Locking screw.
- NF E63-105:2007 Press tools - Ball lock punches - Ball lock device.
- NF L21-273:2000 Fasteners - Lockbolts, protruding head, with close tolerance and titanium alloy T-A6V shank and with collar in steel XC 10
- NF E27-625:1981 Serrated lock washers internal teeth.
- NF E27-624:1981 Serrated lock washers external teeth.
- NF L21-274:2000 Fasteners - Lockbolts, 100 o countersunk head, with close tolerance and titanium alloy T-A6V shank and with collar in steel XC 10.
- NF E27-165:1976 Slide for locking screw.
- NF E27-614:1980 Fasteners. Nut lock.
- NF E22-308-2:1997 Rolling bearings. Accessories. Part 2 : locknuts and locking devices. Dimensions.
- NF E63-050:1994 Tool for pressing. Gliding pillards. Straight pillars with end locking and locking ring.
- NF L21-271:2000 Fasteners - Lockbolts, protruding head, with close tolerance and titanium alloy T-A6V shank and with collar in aluminium alloy 2024
- NF G91-106/A1*NF EN 1414/A1:2000 Touch and close fasteners - Cycling procedure for subsequent testing
- NF L21-272:2000 Fasteners - Lockbolts, 100o countersunk head, with close tolerance and titanium alloy T-A6V shank and with collar in aluminium alloy 2024
- NF E63-102-1*NF ISO 10071-1:2009 Tools for pressing - Ball-lock punches - Part 1 : ball-lock punches for light duty
IFI/FASTNR - Industrial Fastener Institute
- INTRO- Introduction to Locking Fasteners
- 524-1982 Test Procedure for the Locking Ability Performance of Metric Non-Metallic Locking Element Type Prevailing Torque Lock Screws
- SECT F- Section F - Locking Fasteners
- 125-1987 Test Procedure for the Locking Ability Performance of Chemical Coated Lock Screws
- 525-1982 Test Procedure for the Locking Ability Performance of Metric Chemical Coated Lock Screws
CZ-CSN
- CSN 02 1491-1961 Look nut
- CSN 02 1754-1969 Locking washers
- CSN 02 2929-1978 Locking plates for shafts
- CSN ON 35 9750-1964 Bolt lock for switchboard
SCC
- NS 50:1944 Lock washers
- BS ISO 2982-2:1995 Rolling bearings. Accessories-Locknuts and locking devices. Dimensions
- BS ISO 2982-2:2001 Rolling bearings. Accessories-Locknuts and locking devices. Dimensions
- NS 5251:1972 Palnuts, self locking counternuts, metric
- AIA NAS7800-7806 BOLT, PAN HEAD, CLOSE TOLERANCE, SHORT THREAD, CRUCIFORM RECESS, A286 CRES, SELF-LOCKING AND NON-LOCKING
- AIA NAS5100-5106 [BEST AVAILABLE COPY] Bolt, Pan Head, Close Tolerance, Short Thread, Tri-Slot Recess, A286 CRES, Self-Locking and Nonlocking
- AENOR UNE 17079:1968 LOCK WASHERS WITH INTERIOR STRIP
- 12/30259911 DC BS ISO 2982-2. Rolling bearings. Accessories. Dimensions for locknuts and locking devices
- CSA B18.2.4.5-M1980-1980 Metric Hex Jam Nuts
- NS 6061:1978 Marine industry - Locking handle
- MIL MIL-W-70336/5-1990 WASHER, LOCK, EXTERNAL TOOTH (METRIC)
- ASME B18.2.4.5M-1979(R2003) Metric Hex Jam Nuts
Aerospace, Security and Defence Industries Association of Europe (ASD)
- ASD-STAN PREN 2645-1987 Aerospace Series Straight Metric-Size Unions with Locking Ring Locking Ring Dimensions (Issue P 1)
American Society of Mechanical Engineers (ASME)
- ASME B107.24-2002 Locking Pliers
- ASME B18.21.2M-1990 Lock washers (metric series)
- ASME B18.21.1-1990 Lock washers (Inch series)
- ASME B18.21.1-1994 Lock washers (Inch series)
- ASME B18.21.2M-1999(R2014) Lock Washers (Metric Series) Supersedes IFI 532: 1982
- ASME B18.21.2M-1999 Lock Washers (Metric Series) Supersedes IFI 532: 1982
- ASME B18.21.1-1999 Lock washers (Inch series)
IN-BIS
- IS 10372-1982 Locking pliers specifications
- IS 5371-1982 Specification for multi-tooth lock washers
ZA-SANS
- SANS 1823:2007 Touch and close fasteners
- SANS 1700-15-8:1998 Fasteners Part 15: Prevailing torque type nuts Section 8: Prevailing torque type hexagon thin nuts (with non-metallic insert)
American National Standards Institute (ANSI)
- ANSI/ASME B94.29.1-1977 Die-Buttons - Basic Ball-Lock (Metric)
- ANSI/BHMA A156.25-2002 Electrified Locking Devices
- ANSI/BHMA A156.25-2013 Electrified Locking Devices
- ANSI/ASME B18.21.1-2009 Washers-Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)
- ANSI/ASTM F993:1986 Specification for Valve Locking Devices
- ANSI/ASTM F993:1997 Specification for Valve Locking Devices
Aerospace Industries Association
- AIA NAS 1080-2002 Collar, Swage Locking for Pull-Type and Stump-Type Lockbolts FSC 5320; REV 13
GM Daewoo
- GMKOREA EDS-M-8931-2011 Locking agent-screws
British Standards Institution (BSI)
- BS ISO 10071-1:2008 Tools for pressing - Ball-lock punches - Ball-lock punches for light duty
- BS ISO 10071-2:2005 Tools for pressing - Ball-lock punches - Ball-lock punches for heavy duty
International Organization for Standardization (ISO)
- ISO 2982-2:2001 Rolling bearings - Accessories - Part 2: Locknuts and locking devices; Dimensions
- ISO 3670:1979 Blanks for plug gauges and handles (taper lock and trilock) and ring gauges; Design and general dimensions
- ISO 10071-1:2008 Tools for pressing - Ball-lock punches - Part 1: Ball-lock punches for light duty
- ISO 2983:1975 Rolling bearings; Locknuts, wide series, and lockwashers with bent inner tab
Japanese Industrial Standards Committee (JISC)
- JIS F 7390:1996 Shipbuilding -- Cocks with lock
- JIS B 1251:2001 Spring lock washers
- JIS B 1255:1977 Toothed lock washers
- JIS B 1251:2018 Spring lock washers
- JIS E 4203:1994 Railway rolling stock -- Tight lock couplers
IX-SA
- AS 1969:1976 Toothed lock washer
- AS 1968:1976 coil spring lock washer
Defense Logistics Agency
- DLA FF-W-100 C-1969 WASHER, LOCK (TOOTH)
- DLA FF-W-100 C (1)-1980 WASHER, LOCK (TOOTH)
- DLA FF-W-100 C NOTICE 1-2000 WASHER, LOCK (TOOTH)
- DLA FF-W-84 A (4)-1992 WASHER, LOCK (SPRING)
- DLA FF-W-84 A-1967 WASHER, LOCK (SPRING)
- DLA FF-W-84 A NOTICE 1-2000 WASHER, LOCK (SPRING)
- DLA MS35335 REV G-2004 WASHER, LOCK, FLAT-EXTERNAL TOOTH
- DLA MS51414 REV A-1986 WASHER, LOCK, FLAT-EXTERNAL TOOTH
- DLA MS51413 REV A-1986 WASHER, LOCK, FLAT-INTERNAL TOOTH
- DLA MS51413 REV A NOTICE 1-2000 WASHER, LOCK, FLAT-INTERNAL TOOTH
- DLA MS51414 REV A NOTICE 1-2000 WASHER, LOCK, FLAT-EXTERNAL TOOTH
KR-KS
- KS B 1324-2017(英文版) Spring lock washers
(U.S.) Builders Hardware Manufacturers Association
- BHMA A156.25-2007 Electrified Locking Devices
RU-GOST R
- GOST 9049-1969 Locking screws. Construction
- GOST 3009-1978 Pin-locking type cutting tools shanks. Basic dimensions
AT-ON
- ONORM M 6324 Teil.1-1987 Rolling bearings; accessories; adaptersleeves, withdrawal sleeves, locknuts, locking elements
TR-TSE
- TS 3573-1981 ROLLING BEARINGS - LOCK NUTS, NARRV SEPIE, and Lockwashers With Straight Tab
- TS 79-1963 WASHERS AND LDCK WASHERS
Aerospace Industries Association/ANSI Aerospace Standards
- AIA/NAS NAS 1080-2002 Collar, Swage Locking for Pull-Type and Stump-Type Lockbolts FSC 5320; REV 13
- AIA/NAS NAS1563-2011 GAGES, PINS AND COLLAR INSPECTION, SWAGE LOCKING Rev 10
International Federation of Trucks and Engines
- NAVISTAR ESP E-2.201-NR-2015 VOID - Hex Jam Nuts - Not Recommended (Noun Code 5780)
GSO
- OS GSO ISO 2982-2:2015 Rolling bearings -- Accessories -- Part 2: Dimensions for locknuts and locking devices
- GSO ISO 2982-2:2015 Rolling bearings -- Accessories -- Part 2: Dimensions for locknuts and locking devices
- BH GSO ISO 2982-2:2016 Rolling bearings -- Accessories -- Part 2: Dimensions for locknuts and locking devices
GOST
- GOST 11872-1980 Multi-jaw lock washers. Specifications
GM Europe
- GME L 000 0425-1978 Screw locking varnish (Germany)
SE-SIS
- SIS SS 1804-1979 Accessorles for drilling purposes — Locking screws
TH-TISI
- TIS 259-1978 Standard for spring lock washers