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.
