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The BOWMALLOY BOW36433 is a fully threaded hex head cap screw engineered for high-strength fastening applications in mechanical, structural, and industrial assemblies. Built to Grade 9 specifications, this screw delivers superior tensile and proof load strength compared to standard Grade 5 or Grade 8 fasteners. The 9/16-18 UNF thread profile - a fine-thread designation - provides excellent holding power and resistance to loosening under vibration. The Bowma-Guard zinc-plated clear chromate finish provides corrosion resistance suitable for general-purpose service environments. At 2 inches in length under head with full threading, this fastener is ready for through-bolt and tapped-hole applications without the need for additional thread engagement adjustments.
This hex head cap screw is suited for use in trade and industrial settings where high-strength inch-series fasteners are required. Common applications include equipment mounting, structural steel connections, HVAC equipment frames, and mechanical drive assemblies where fine-thread engagement and Grade 9 strength are specified. It is sold in packages of 25, making it practical for job lot stocking and service van inventory.
Designed as a standard inch-series hex head cap screw compatible with 9/16-18 UNF tapped holes and standard hex nuts in Grade 9 or lower-grade fastener applications.
Installation should be performed by a qualified mechanic or tradesperson using a calibrated torque wrench sized for 9/16-inch hex fasteners. Always verify that the mating thread (nut or tapped hole) is rated to handle Grade 9 loads before torquing to specification. Follow the applicable equipment manufacturer torque tables or relevant structural fastener standards for the assembly type. Inspect threads for damage or contamination before installation and apply thread lubricant or thread-locking compound only as specified by the assembly procedure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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