Off the floor · Bolts & Screws
3/4"-10 UNC x 2-1/2" Heavy Hex Bolt
SAE J429 Grade 5, yellow chromate zinc (ASTM B633 Type II Fe/Zn8). Machined to the customer's drawing in our Houston shop.

Job details
PartHeavy Hex Bolt
Thread3/4"-10 UNC
Length2-1/2"
MaterialSAE J429 Grade 5, yellow chromate zinc (ASTM B633 Type II Fe/Zn8)
Grade pageGrade 5 / A449
Product familyBolts & Screws
Made inHouston, Texas · ISO 9001 certified
3/4"-10 UNC x 2-1/2" heavy hex bolt machined to SAE J429 Grade 5. Finished with yellow chromate zinc plating per ASTM B633 Type II Fe/Zn8 SE II.
Headed fasteners are turned or forged to the pattern on the drawing, threads rolled or cut to class, and supplied with the finish specified. Heavy hex, 12-point flange, eye and special-head styles are routine work here.
About the material: The everyday high-strength bolt: quenched and tempered medium-carbon steel at 120 ksi to 1 in., stepping down for larger sizes — Grade 5 in SAE terms, A449 in ASTM terms. Read the Grade 5 / A449 data page →
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