Cap Screws

Cap Screws are stocked through BW Industrial Sales with an impressive selection of sizes, styles, types, and materials available to meet the manufacturer’s required specifications. Slotted flat cap screws are manufactured to ASME B18.6.2 dimensions which is recognized as the American National Standard. Our inventory of slotted flat cap screws offers a tensile strength of 74,000 psi. and are stocked in a steel zinc plating. Hex cap screws are ready to ship out of the warehouse in a vast selection of spec variations. Our Hex cap screws are stocked and manufactured to ASME B.18.2.1 & SAE J429 dimensions with the exception of our grade 9, metric, and military-spec cap screws that are manufactured from critical specifications for the individual part and the application with available certifications from the manufacturer. Material options for hex cap screws include steel (plain or coated), 300 series 18-8 & 316 stainless steels, as well as a 2024-T4 or equivalent aluminum alloy. Finishes are available for coating steel in a black oxide, zinc plating, and zinc yellow plating for your application’s needs. Hex cap screws are available in partial thread and full thread options for grade 2, grade 5, grade 8, grade 9, metric and military-spec variations. Grade 2 hex cap screws offer a tensile strength of 60,000 psi. for ¼” - ¾” diameters, greater than 6” & 7/8 – 1.5” diameters with a tensile strength of 74,000 psi. for ¼” – ¾” diameters >= 6”. Grade 5 hex cap screws are manufactured with a tensile strength of 105,000 psi. minimum for 1 1/8” – 1.5” diameters and 120,000 psi. minimum for ¼” – 1” diameters. Grade 8 hex cap screws offer an impressive tensile strength of 150,000 psi. minimum for diameters of ¼” – 1.5”. Grade 9 hex cap screws are manufactured from 8637/8640/8740 medium carbon alloy steel and are made only in the USA. Grade 9 hex cap screws have an incredible tensile strength of 180,000 psi. minimum and a hardness of HRC 38-42. Our inventory for grade 9 hex cap screws are DFAR compliant and offer an EcoGuard(^TM)- 1,000 hour gray/silver coated finish. Our stock of metric hex cap screws includes ready to ship items in DIN 931 (partial thread) and DIN 933 (full thread) dimensions for class 8.8 and class 10.9 specifications. Metric hex cap screws are quenched and tempered, offering a tensile strength of 800 N/mm^2 for class 8.8 steel and a tensile strength of 1040 N/mm^2 minimum for class 10.9 steel. Military spec. hex cap screws are made in the USA, DFAR compliant, tested and certified to military standards and are available offering five dimensions that are ready to ship out of the warehouse in bulk quantities today! ASME B18.2.1BH Mil-Spec hex cap screws are stocked and are known to supersede MS90728G dimensions with head markings of approved MIL-HDBK-57. Mil-spec MS35307 (coarse thread) and MS35308 (fine thread) specifications offer 300 series stainless steel for impressive corrosion resistance and are passivated to QQP-35. Military grade MS90725 (coarse thread) and MS90726 (fine thread) dimensions are stocked in a medium carbon steel offering a cadmium yellow plating. In addition, Our inventory includes a large selection of silicon bronze hex cap screws.

Here at BW Industrial Sales, your satisfaction is our number one priority! If you have any questions or concerns about cap screws, other screws or any other manufacturing parts and tooling, please contact our experienced and qualified BW Industrial Sales staff; or call us at 626-358-1836 for an immediate response.
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