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MANUFACTURER PRODUCT FILE · 2026-10-22

Socket-head cap screws

Gem-Year Industrial Co., Ltd. ↗

The same company technical table separately lists cylindrical socket-head screws; these must not inherit the external-hexagon size envelope.

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PRODUCT REFERENCE

Socket-head cap screws

Published materials
Low/medium-carbon steel and alloy steel
Published metric range
M4–M36 cold forged; M39–M42 hot forged
Standards listed by publisher
DIN 912, GB/T 70.1, DIN 7984, ISO 4762, ASME B18.3 Table 1
Specification summary from the company publication linked below.
Assorted fasteners in Gem-Year’s catalogue image
General fastener range · Gem-Year catalogue image. Series or schematic reference; not an exact dimensional product photograph. Original source ↗
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Source: company publication

Checked on 2026-10-22. Published ranges describe the catalogue, not live stock or a confirmed quotation.

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PUBLISHED SPECIFICATIONS

What the source actually states.

ParameterCompany-published informationSource
Published materialsLow/medium-carbon steel and alloy steelCompany page ↗
Published metric rangeM4–M36 cold forged; M39–M42 hot forgedCompany page ↗
Standards listed by publisherDIN 912, GB/T 70.1, DIN 7984, ISO 4762, ASME B18.3 Table 1Company page ↗
Example length bandM10 cold-forged socket head: 14–280 mmCompany page ↗

Standards are listed as published by the company; no equivalence between standards, certification or suitability for your application is implied.

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  1. Head height, drive dimensions and exact standard
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  3. Size-specific production route and drawing approval

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