Bowmalloy 36383 Hex Head Cap Screw 7/16-20 X 2 in Grade 9

Product Description

The BOWMALLOY 36383 is a Grade 9 alloy steel hex head cap screw sized 7/16-20 x 2 inches, designed for high-strength fastening applications in industrial, mechanical, and trade environments. Grade 9 alloy steel delivers tensile strength well above standard SAE Grade 5 and Grade 8 hardware, making it appropriate for joints that experience significant load, vibration, or shear stress. The partial threading and unified fine thread pitch (7/16-20) provide precise clamping force and resistance to loosening under dynamic loads. The clear zinc chromate finish adds corrosion resistance without interfering with dimensional tolerances. Licensed mechanics, millwrights, and industrial maintenance technicians are the typical installers.

This fastener suits high-load bolted joints in heavy equipment, agricultural machinery, hydraulic assemblies, and structural mechanical connections where Grade 9 strength is specified. The 7/16-20 fine thread is commonly used in applications requiring greater thread engagement and precise preload control versus coarse-thread equivalents. Partial threading allows the unthreaded shank to act as a locating or shear surface in precision-fit bores. It is sold in packages of 50 units, making it suitable for both single-repair and production-quantity procurement.

Key Features

• Grade 9 alloy steel construction for high tensile and proof load strength
• 7/16-20 unified fine thread for precise preload and vibration resistance
• 2-inch length under head with partial threading for shear-surface applications
• Clear zinc chromate finish provides corrosion protection
• Inch measurement system, UNSPSC Code 31161501
• Packaged in quantities of 50 units per package

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application specifying a 7/16-20 x 2-inch Grade 9 alloy steel fastener with clear zinc chromate finish.

Installation Notes

Installation should be performed by qualified mechanics or maintenance technicians familiar with fastener torque specifications for Grade 9 hardware. Always consult the equipment manufacturer's torque tables for the correct target preload before tightening. Verify thread fit and bore clearance before driving the fastener to avoid cross-threading or galling the zinc coating. Inspect the seating surface and mating threads for damage or contamination prior to assembly.