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Database: 365,228(8 Aug 2026)

Single head male thread straight head

Single head male thread straight head, Total:250 items.

The international standard classification for "Single head male thread straight head" includes: Braking systems , Rings, bushes, sleeves, collars , Flanges, couplings and joints , Materials and components for shipbuilding , Piping systems , Road vehicle systems , Railway rolling stock in general .

The Chinese standard classification for "Single head male thread straight head" includes: Braking system , Pipeline fittings , Metal components and accessories , Profile steel and deformed steel , Marine pipe fittings , Plug screws, pipe fittings .


General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Professional Standard - Aviation

Professional Standard - Machinery

  • JB/T 6381.3-1992 Cone seal welded straight through conical pipe threaded pipe joint
  • JB/T 6381.2-1992 Cone seal welded straight through cylindrical pipe threaded pipe joint
  • JB/T 967-1967 Right Angle Attachment Threaded Fittings
  • JB/ZQ 4399-2006 Welding couplings with pipe threads where pressure-tight joints are made on the threads - Straight thread
  • JB/T 6381.4-1992 Cone seal welded straight through taper thread pipe joint

Professional Standard - Construction Industry

Professional Standard-Ships

Professional Standard - Automobile

未注明发布机构

  • SAE AS4320-2007 FITTING END, STRAIGHT THREAD, STANDARD DIMENSIONS FOR, DESIGN STANDARD
  • DIN 3858:1970 Whitworth pipe threads for pipe couplings; parallel internal threads and taper external threads; thread dimensions
  • SAE AS4863-2007 PLUG, PIPE, EXTERNAL THREAD

Professional Standard - Railway

Taiwan Provincial Standard of the People's Republic of China

SE-SIS

  • SIS SMS-1108-1939 External straight thread connector socket
  • SIS SMS 1098-1948 Fitting, Straight, Internally Threaded, Externally Threaded, Pressure Rated: 10
  • SIS SMS 1258-1969 FitUngs for piping. Externally threaded connections
  • SIS SS 1109-1991 Fittings for piping — Elbow nipples for PN 10 — Externally threaded
  • SIS SS 3219-1984 Threaded stainless steel pipe fittings - Nipples for welding with external taper pipe thread

Defense Logistics Agency

PL-PKN

Society of Automotive Engineers (SAE)

  • SAE AS46734-1-1980 AS46734 Union-Adaptor, Nipple End, Male Nut Union (Steel)
  • SAE AS4860-2002 NIPPLE, PIPE, EXTERNAL THREAD
  • SAE AS4860A-2003 (R) FITTING, NIPPLE, PIPE, EXTERNAL THREAD
  • SAE AS930B-1975 FITTING END - STRAIGHT THREAD, BOSS CONNECTION
  • SAE AS930C-1987 FITTING END - STRAIGHT THREAD BOSS CONNECTION
  • SAE AS930-1969 FITTING END - STRAIGHT THREAD, BOSS CONNECTION
  • SAE AS4704A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT MALE TO STRAIGHT MALE
  • SAE AS85421/14D-2022 FITTING, ELBOW, 90°, BEAM SEAL, 3000/4000 PSI, MALE TO FEMALE
  • SAE AS85421/14C-2015 FITTING, ELBOW, 90°, BEAM SEAL, 3000/4000 PSI, MALE TO FEMALE
  • SAE AS4860A-2013 FITTING, NIPPLE, PIPE, EXTERNAL THREAD
  • SAE AS5170-2003 FITTING, PLUG, PORT, STRAIGHT THREAD, O-RING SEAL
  • SAE AS5193-2004 FITTING, CROSS, INTERNAL STRAIGHT THREAD PORT
  • SAE AS5193B-2021 FITTING, CROSS, INTERNAL STRAIGHT THREAD PORT
  • SAE AS5193A-2015 FITTING, CROSS, INTERNAL STRAIGHT THREAD PORT
  • SAE AS896-1976 NIPPLE, FLARELESS TUBE TO MALE PIPE
  • SAE AS5192F-2021 FITTING, TEE, INTERNAL STRAIGHT THREAD PORT
  • SAE AS5192E-2021 FITTING, TEE, INTERNAL STRAIGHT THREAD PORT
  • SAE AS4796A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT FEMALE TO STRAIGHT MALE
  • SAE AS7365/3-2013 COUPLING, MALE, 12 INCH AIR DUCT
  • SAE AS7365/5-2013 COUPLING, MALE, 6 INCH AIR DUCT
  • SAE AS4706A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT MALE TO 90° MALE
  • SAE AS4705A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT MALE TO 45° MALE
  • SAE MA2012B-2015 PORT, INTERNAL, STRAIGHT THREAD, FITTING CONNECTION, DESIGN STANDARD, METRIC
  • SAE AS7365/9-2013 BAND, MALE COUPLING, 6 INCH AIR DUCT
  • SAE AS1859-2002 FITTING END, NON-REVERSIBLE STRAIGHT THREAD, BOSS CONNECTION
  • SAE AS5793-2013 FITTING ASSEMBLY, STRAIGHT, MALE FLARELESS, AXIALLY SWAGED, HYDRAULIC
  • SAE AS930E-2013 FITTING END, STRAIGHT THREAD, PORT CONNECTION, DESIGN STANDARD
  • SAE AS930E-1998 FITTING END, STRAIGHT THREAD, PORT CONNECTION, DESIGN STANDARD
  • SAE AS930D-1996 FITTING END, STRAIGHT THREAD, BOSS CONNECTION, DESIGN STANDARD
  • SAE AS4863-2015 PLUG, PIPE, EXTERNAL THREAD
  • SAE AS5201-2013 FITTING END, EXTERNAL TAPER PIPE THREAD, DESIGN STANDARD
  • SAE AS85421/13C-2015 FITTING, ELBOW, 90°, BEAM SEAL, 3000/4000 PSI, BULKHEAD MALE ENDS
  • SAE AS85421/13D-2022 FITTING, ELBOW, 90°, BEAM SEAL, 3000/4000 PSI, BULKHEAD MALE ENDS
  • SAE AS5191-2000 Fitting, Elbow, 45 Degrees, Internal Straight Thread Port FSC 4730
  • SAE AS4802A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT MALE TO 45° FEMALE
  • SAE AS4797A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT FEMALE TO 45° MALE
  • SAE AS4803A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT MALE TO 90° FEMALE
  • SAE AS4798A-2007 HOSE ASSEMBLY, LINED SILICONE, 125 PSI, FIXED CAVITY COUPLING, POTABLE WATER, STRAIGHT FEMALE TO 90° MALE
  • SAE AS4693B-2009 Union, Tube End, External Thread to Weld, Short Flareless
  • SAE AS46736-1-1980 AS46736 Tee - Nipple Branch, Male Nut Union (Steel)
  • SAE AS4225-2015 FITTING, ELBOW, 90°, BEAM SEAL, EXTERNAL THREAD, EXTERNAL SWAGE TUBE END, HYDRAULIC, 3000 PSI
  • SAE AS4207-1992 FITTING END, EXTERNAL THREAD, BEAM SEAL, DESIGN STANDARD
  • SAE AS4862A-2009 Fitting, Plug, Pipe, External Thread, Hex Head
  • SAE AS4207A-2015 FITTING END, EXTERNAL THREAD, BEAM SEAL, DESIGN STANDARD
  • SAE AS4659A-2013 FITTING END, EXTERNAL THREAD, SHORT FLARELESS, DESIGN STANDARD
  • SAE AS4218-2015 FITTING, ELBOW, 45°, BEAM SEAL, EXTERNAL THREAD, EXTERNAL SWAGE TUBE END, HYDRAULIC, 3000 PSI
  • SAE AS4864-2002 PLUG, PIPE, EXTERNAL THREAD, COUNTERSINK HEX HEAD
  • SAE AS4658-2013 FITTING END, EXTERNAL THREAD, SHORT FLARELESS, DESIGN STANDARD
  • SAE AS893D-2009 Fitting, Tee, Standard and Reducer, Flareless Tube to Pipe on Side, External Thread
  • SAE AS5975D-2020 FITTING ASSEMBLY, STRAIGHT, MALE FLARELESS, AXIALLY SWAGED, HYDRAULIC, 5080 PSI
  • SAE AS5793B-2020 FITTING ASSEMBLY, STRAIGHT, MALE FLARELESS, AXIALLY SWAGED, HYDRAULIC, 3000 PSI
  • SAE AS896D-2020 FITTING, NIPPLE, REDUCER, FLARELESS TUBE TO PIPE, EXTERNAL THREAD
  • SAE AS4320-2015 FITTING END, STRAIGHT THREAD, STANDARD DIMENSIONS FOR, DESIGN STANDARD
  • SAE AS5202A-2013 PORT OR FITTING END, INTERNAL STRAIGHT THREAD, DESIGN STANDARD
  • SAE AS896C-2015 FITTING, NIPPLE, REDUCER, FLARELESS TUBE TO PIPE, EXTERNAL THREAD
  • SAE AS896B-2007 FITTING, NIPPLE, REDUCER, FLARELESS TUBE TO PIPE, EXTERNAL THREAD
  • SAE AGS1219-4-1958 AGS1219 Dimensions of Tapped Holes in Components for Connecting A.G.S. Pipe Couplings Direct
  • SAE AS27465-5-2017 AS27465-499 Union, Tube, Double-Ended Threads

CZ-CSN

  • CSN 13 8244-1983 Keduoing nipples with external threads
  • CSN 13 8240-1983 Reducing pieces with internal and exter-nal threads
  • CSN 13 7612-1972 Mechanical engineering screwed pipe joints. Sockets of radial straight pipe connections with connecting metric
  • CSN 13 7720-1960 Straight pipe connections with connecting metric thread
  • CSN 13 8215-1983 45° elbow internal and external threads
  • CSN 13 9325-1986 Stainless steel globe stop valves straight-way an?angle-way type with male connections or sorewod ends PN 160
  • CSN 13 7521-1973 Reducíng pressure gauge connections with metric female threads and male pipe threads. Np 640

FI-SFS

SAE - SAE International

  • SAE AS4704D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO STRAIGHT MALE
  • SAE AS930D-1987 FITTING END - STRAIGHT THREAD BOSS CONNECTION
  • SAE AS85421/14A-2002 Fitting@ Elbow@ 90 Degree@ Beam Seal@ 3000/4000 psi@ Male to Female
  • SAE AS85421/14-2001 Fitting@ Elbow@ 90 Degree@ Beam Seal@ 3000/4000 psi@ Male to Female
  • SAE AS5192B-2005 Fitting@ Tee@ Internal Straight Thread Port
  • SAE AS5193-2000 Fitting@ Cross@ Internal Straight Thread Port
  • SAE AS5192A-2005 Fitting@ Tee@ Internal Straight Thread Port
  • SAE AS5193A-2009 FITTING@ CROSS@ INTERNAL STRAIGHT THREAD PORT
  • SAE AS7365/3-2003 COUPLING@ MALE@ 12 INCH AIR DUCT
  • SAE AS4796D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO STRAIGHT MALE
  • SAE AS4796A-2001 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO STRAIGHT MALE
  • SAE AS7365/5-2003 COUPLING@ MALE@ 6 INCH AIR DUCT
  • SAE AS4796C-2010 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO STRAIGHT MALE
  • SAE AS4706B-2007 Hose Assembly@ Lined Silicone@ 125 psi@ Fixed Cavity Coupling@ Potable Water@ Straight Male to 90° Male
  • SAE AS4706D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 90° MALE
  • SAE AS4796B-2007 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO STRAIGHT MALE
  • SAE AS1016A-1999 Fitting End Attachable@ Flareless Male@ Flexible Metal Hose - Straight@ 45 Degree Elbow and 90 Degree Elbow Styles
  • SAE AS4705A-2001 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 45 DEGREES MALE
  • SAE AS4706A-2001 Hose Assembly@ Lined Silicone@ 125 psi@ Fixed Cavity Coupling@ Potable Water@ Straight Male to 90 Degree Male
  • SAE AS4705C-2010 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 45 DEGREES MALE
  • SAE AS1859A-2002 Fitting End@ Non- Reversible@ Straight Thread@ Boss Connection
  • SAE AS1859-1987 Fitting End@ Non- Reversible@ Straight Thread@ Boss Connection
  • SAE AS4864-1995 Plug@ Pipe@ External Thread@ Countersink Hex Head
  • SAE AS4862-1995 Plug@ Pipe@ External Thread@ Hex Head
  • SAE AS930F-2019 FITTING END@ STRAIGHT THREAD@ PORT CONNECTION@ DESIGN STANDARD
  • SAE AS4232-1996 Fitting@ Elbow@ 90 Degree@ External Thread@ Beam Seal to Integral Weld Ring
  • SAE AS4863-1995 Plug@ Pipe@ External Thread (FSC 4730; Should Be Used Instead of MS20913G@ Which Was Cancelled on 28 September 1999)
  • SAE AS4230-1996 Fitting@ Elbow@ 45 Degree@ External Thread@ Beam Seal to Integral Weld Ring
  • SAE AS4693C-2013 UNION@ TUBE END@ EXTERNAL THREAD TO WELD@ SHORT FLARELESS
  • SAE AS4693A-1992 Union@ Tube End@ External Thread to Weld@ Short Flareless
  • SAE AS4803A-2001 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 90° FEMALE
  • SAE AS4797D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO 45° MALE
  • SAE AS4693D-2013 UNION@ TUBE END@ EXTERNAL THREAD TO WELD@ SHORT FLARELESS
  • SAE AS4797A-2001 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO 45° MALE
  • SAE AS4803B-2007 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 90° FEMALE
  • SAE AS4797B-2007 Hose Assembly@ Lined Silicone@ 125 psi@ Fixed Cavity Coupling@ Potable Water@ Straight Female to 45° Male
  • SAE AS4798D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO 90° MALE
  • SAE AS4798B-2007 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO 90° MALE
  • SAE AS1011-1960 Fitting End (Attachable@ Male for 37 Degree Flared Tube Connection@ Flexible Metal Hose- Straight@ 45 Degree Elbow and 90 Degree Elbow Styles)
  • SAE AS4803C-2010 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 90 DEGREES FEMALE
  • SAE AS4797C-2010 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT FEMALE TO 45 DEGREES MALE
  • SAE AS4802A-2001 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 45 DEGREES FEMALE
  • SAE AS4798B-2001 Hose Assembly@ Lined Silicone@ 125 psi@ Fixed Cavity Coupling@ Potable Water@ Straight Female to 90 Degree Male
  • SAE AS4375-1992 Fitting End@ External Thread@ Flareless Design Standard
  • SAE AS4803D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 90 DEGREES FEMALE
  • SAE AS5793A-2015 FITTING ASSEMBLY, STRAIGHT, MALE FLARELESS, AXIALLY SWAGED, HYDRAULIC, 3000 PSI
  • SAE AS4802C-2010 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 45 DEGREES FEMALE
  • SAE AS4802D-2018 HOSE ASSEMBLY@ LINED SILICONE@ 125 PSI@ FIXED CAVITY COUPLING@ POTABLE WATER@ STRAIGHT MALE TO 45 DEGREES FEMALE
  • SAE AS1011A-1999 Fitting End Attachable@ Male for 37 Degree Flared Tube Connection@ Flexible Metal Hose-Straight@ 45 Degree Elbow and 90 Degree Elbow Styles
  • SAE AS4231-1996 Fitting@ Elbow@ 45 Degree@ Bulkhead@ External Thread@ Beam Seal to Integral Weld Ring

RU-GOST R

  • GOST 24092-1980 Threaded tube connections. Passage unions for welding. Construction
  • GOST 15803-1976 Threaded pipeline connections. Counternuts. Construction

GSO

  • GSO ISO 4038:2013 Road vehicles -- Hydraulic braking systems -- Simple flare pipes, tapped holes, male fittings and hose end fittings
  • BH GSO ISO 4038:2016 Road vehicles -- Hydraulic braking systems -- Simple flare pipes, tapped holes, male fittings and hose end fittings

Korean Agency for Technology and Standards (KATS)

  • KS R ISO 4038-2023 Road vehicles-Hydraulic braking systems-Simple flare pipes, tapped holes, male fittings and hose end fittings
  • KS R ISO 4038-2008(2018) Road vehicles-Hydraulic braking systems-Simple flare pipes, tapped holes, male fittings and hose end fittings

RO-ASRO

  • STAS 6936/4-1976 Threaded fittings for refrigerating plants CONNECTOR (HALF UNION) Dimensions
  • STAS 6936/6-1976 Threaded fittings for refrigerating plants SOLDER CONNECTOR (HALF UNION) Dimensions
  • STAS 6936/8-1976 Threaded fittings for refrigerating plants ELBOW (HALF UNION) Dimensions

U.S. Air Force

German Institute for Standardization

  • DIN 3238:2001-11 Couplings for compressed air - Claw coupling, 42 mm internal width, with securing nut - Coupling with male, female and hose connection ends, joint ring / Note: To be replaced by DIN 3238 (in preparation).
  • DIN 3238:2023-03 Couplings for compressed air - Claw coupling, 42 mm internal width, with securing nut - Coupling with male, female and hose connection ends, joint ring / Note: Date of issue 2023-02-17*Intended as replacement for DIN 3238 (2001-11).
  • DIN 3238:2023-11 Couplings for compressed air - Claw coupling, 42 mm internal width, with securing nut - Coupling with male, female and hose connection ends, joint ring
  • DIN 20036:1990-10 Hose fittings; coupling nipples with round thread form
  • DIN 3489:2023-11 Couplings for compressed air - Claw coupling, 42 mm internal width, without securing nut - Coupling with male, female, hose and closure connection ends, rotary claw couplings, joint ring
  • DIN 3489:2023-03 Couplings for compressed air - Claw coupling, 42 mm internal width, without securing nut - Coupling with male, female, hose and closure connection ends, rotary claw couplings, joint ring / Note: Date of issue 2023-02-17*Intended as replacement for DIN ...
  • DIN 3489:2001-11 Couplings for compressed air - Claw coupling, 42 mm internal width, without securing nut - Coupling with male, female, hose and closure connection ends, rotary claw couplings, joint ring / Note: To be replaced by DIN 3489 (in preparation).
  • DIN 82010:1971 Round Eyes with Screwed Shank for Swivels and Turnbuckles
  • DIN 82008:1971 Double Lugs with Screwed Shank for Swivels and Turnbuckles
  • DIN 82006:1971 Oval Eyes with Screwed Shank for Swivels and Turnbuckles

Association Francaise de Normalisation

  • NF L40-103:1974 Connectors, axial sealing. Male thread fittings, ISO metric thread profile and B.N.A.E. Tolerances.
  • NF E11-032:1989 Gauges. Screw plug gauges (single and double-ended). Diameters from 1 mm to 100 mm.
  • NF L40-104:1973 Connectors, axial sealing. Male thread fittings, ISO metric thread profile and tolerances.
  • NF EN ISO 4028:2004 Vis sans tête à six pans creux, à téton
  • NF EN 27435:1992 Vis sans tête, fendues, à téton long
  • NF EN 3853:2003 Aerospace Series - Spherical Fittings, 60o, Titanium Alloy TI-P64001 - Straight Fittings, Threaded

U.S. Military Regulations and Norms

SCC

  • MIL MIL-DTL-32372/7B-2019 FITTING, ADAPTER, STRAIGHT, HYDRAULIC AND PNEUMATIC, NPTF MALE TO ORFS FEMALE SWIVEL
  • MIL MIL-DTL-52525/9B-1998 FITTINGS, HOSE, SCREW-ON TO 37 DEGREE FLARE FEMALE SWIVEL, STRAIGHT, TYPE 100R10
  • NS-EN 3853:2002 Aerospace series — Pipe couplings, 60º, spherical, in titanium alloy TI-P64001 — Straight unions, threaded

GM North America

  • GM GML136-1988 Straight Screw Thread Eccentricity Tolerances for Tube Fittings

KR-KS

  • KS R ISO 4038-2008(2023) Road vehicles-Hydraulic braking systems-Simple flare pipes, tapped holes, male fittings and hose end fittings

Danish Standards Foundation

  • DS/EN 3853:2003 Aerospace series - Pipe couplings, 60 °, spherical, in titanium alloy TI-P64001 - Straight unions, threaded

Lithuanian Standards Office

  • LST EN 3853-2003 Aerospace series - Pipe couplings, 60°, spherical, in titanium alloy TI-P64001 - Straight unions, threaded

VN-TCVN

AIA/NAS - Aerospace Industries Association of America Inc.

  • NAS1669-1987 FASTENER - BLIND@ INTERNALLY THREADED@ EXTERNAL SLEEVE@ GENERAL PURPOSE@ PROTRUDING HEAD SELF-LOCKING (Rev 3)