Socket Head Cap Screw Dimensions — ASME B18.3 Inch Ladder (#0 to 1-1/2) with Mechanical Properties

Documents

Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.

Quotation

• The fastener family (Socket Head Cap Screw Dimensions — ASME B18.3 Inch Ladder (#0 to 1-1/2) with Mechanical Properties) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
• Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
• Quantity per size and your target delivery date.
• Destination country, and any required documents (for example a mill test certificate) so the quote includes them.

Sample & supply

Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.

Storage & shipping

Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.

Why does the alloy column matter so much more than the stainless one on a socket screw chart, and when is the stainless figure the one to design with?

The two materials answer different failure questions. Alloy socket screws are through-hardened to roughly 180,000 psi minimum tensile, so their column (5,725 lb at 1/4, 25,540 lb at 1/2, 238,800 lb at 1-1/2) is the one that sizes a structural or clamping joint — the screw thread, not the head, is the limit, and the tightening-torque ladder is derived from it. Stainless columns run at roughly half those figures (2,550 lb at 1/4) because austenitic stainless cannot be through-hardened by heat treatment — and the printed values blank out entirely above the small-to-mid sizes in the collected charts, because that is where the common product line ends, not because the material stops existing. Design with the stainless figure when the joint sees moisture, washdown, chemicals or elevated temperature where retaining properties matters more than peak strength, and upsize the screw to recover the load — or move to an alloy screw with a coating. What the chart cannot decide: the corrosion class (304 vs 316 vs A286), the finish, or whether a joint actually needs the alloy preload — those are application calls, so state the environment and load at RFQ.

What is the MOQ and lead time for socket screws referenced by these charts?

The minimum order quantity is 10,000 pieces. Stock items ship in 3–7 days; non-stock items are confirmed at quotation. Confirm the exact schedule against quantity, size mix and finish at quotation.