GB/T 22795-2008 in English

《GB/T 22795-2008混凝土用膨胀型锚栓 型式与尺寸》由TC85（全国紧固件标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准规定了由碳钢、合金钢或不锈钢制造的、螺纹规格为Ｍ５～Ｍ２４的膨胀型锚栓的型式与基本尺寸。
本标准适用于普通混凝土上锚固的紧固锚栓。

1 Scope

This standard specifies the type and basic dimension of expansion anchors with thread specification of M5 ~ M24 and made of carbon steel, alloy steel or stainless steel.

This standard is applicable to the tightening anchors anchored on ordinary concrete.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition applies.

GB/T 1237 Designation system for fasteners (GB/T 1237-2000, eqv ISO 8991:1986)
GB/T 3103.1 Tolerance of fasteners - Bolts, screws, studs and nuts (GB/T 3103.1-2002, ISO 4759-1:2000, IDT)

3 Type and basic dimension

3.1 Screw type expansion anchor (type LG)

The type and dimension of screw type expansion anchor are shown in Figure 1 and Table 1.

The screw type expansion anchor is composed of conical screw, expansion piece, hexagonal nut and flat washer.

Foreword i
Introduction ii
1 Scope
2 Normative references
3 Type and basic dimension
4 Designation