Honyawn AtlasCHINA MANUFACTURING DIRECTORYExplore the product family, compare company-published files and prepare a requirement that a manufacturer can respond to.
The same company technical table separately lists cylindrical socket-head screws; these must not inherit the external-hexagon size envelope.
Use these as discovery terms. Confirm the controlling standard, grade, dimensions and inspection requirements for your application.
A product name alone leaves important choices open. Send one specification line for each configuration, state the quantity and destination, and identify the drawings or reports needed before a sample or production order.
A useful socket-head RFQ names the controlling standard and edition (for example DIN 912 vs ISO 4762 vs DIN 7984 vs GB/T 70.1), head height / drive type, length datum, property class, finish, quantity, destination, and required documents. Add thread pitch and any grip or under-head length the assembly cares about. Standards listed on this page are discovery labels, not confirmed stock. Send one RFQ line per configuration—do not mix unfinished diameter, length, and class variants into a single line. Use the on-page RFQ starting point, then email [email protected] or WhatsApp +65 9869 5891 when the specification line is ready.
Do not assume interchange from a shared diameter band or the nickname “socket / Allen”. Compare dimensional and mechanical requirements against the edition you will buy—including head height and drive geometry—and obtain engineering approval for any proposed substitution. Atlas lists DIN 912, ISO 4762, DIN 7984, and GB/T 70.1 as discovery starting points, not as proof that two rows are interchangeable substitutes. Pick one controlling standard on the RFQ and state the edition string. For how to read fastener standards in general, use https://honyawnatlas.com/knowledge/fastener-standards/—this family FAQ does not rewrite that desk.
On the Gem-Year socket-head cap screw row published on this page, the metric envelope is listed as M4–M36 cold forged and M39–M42 hot forged. Those figures describe catalogue envelopes, not current inventory and not a promise that every length or class inside the band is available. Ask which process applies to your diameter and length before you agree commercial terms. Do not copy a cold/hot split from the hex-bolt family (including any M39–M64 envelope) onto socket heads. Confirm process, class, and finish in the supplier’s written reply. Contact: [email protected] · WhatsApp +65 9869 5891.
Ask for material or property evidence and dimensional checks that match the order class—not a generic certificate title. Typical RFQ lines: sample loop yes/no; head / drive dimensional report scope; material documentation as required by the buyer; packing and label marks. Use https://honyawnatlas.com/knowledge/quality-documents/ for how to read issuer and lot linkage; this FAQ does not invent ISO or IATF numbers Atlas does not publish. List docs and samples on the first email so the sample loop and production quantity share one scope. Confirm acceptance in the supplier’s written reply before treating quote scope as agreed.
No. The Gem-Year socket-head row on this page states that cylindrical socket-head screws must not inherit the external-hexagon size envelope. Head height, drive, and length bands belong on a separate RFQ line from hex bolts—even when the nominal diameter looks familiar. Keep the published socket metric envelope (M4–M36 cold forged; M39–M42 hot forged) on the socket thread; do not borrow hex hot-forge upper bands. Name the socket series file you are quoting, then confirm class and documents in writing before Agree. Email [email protected] · WhatsApp +65 9869 5891.