Value Collection MPKP44066 Hex Cap Screw 7/16-14 X 3 in Grade 8

Product Description

The VALUE COLLECTION MPKP44066 is a 7/16-14 x 3 inch hex head cap screw manufactured from Grade 8 steel with a zinc-plated finish. Grade 8 is one of the highest-strength classifications for inch-series fasteners, making this screw suitable for high-stress mechanical and structural connections. The partially threaded shank provides a smooth bearing surface under the head, which helps prevent thread galling and allows for proper clamping force in bolted joints. This fastener meets ASTM A354 BD standards, confirming its tensile and proof-load performance for critical applications. Plumbers, HVAC technicians, electricians, and general mechanical contractors commonly use Grade 8 hardware when assembling equipment frames, pipe supports, and mechanical enclosures.

This screw is appropriate for use in a wide range of trade and industrial installation scenarios including HVAC equipment mounting, electrical panel and enclosure assembly, pipe hanger hardware, structural bracketing, and general mechanical fastening wherever a high-strength UNC-thread fastener is required. The zinc plating provides a baseline level of corrosion resistance suitable for indoor and light-duty sheltered applications. It is sold in packages of 10 units, making it practical for job-site use where small quantities are needed without overstock.

Key Features

• Grade 8 steel construction meets ASTM A354 BD standard for high-strength fastener applications
• 7/16-14 UNC thread size with 3 inch length under head for deep-grip fastening
• Partially threaded shank allows proper clamping load and reduces galling on mating surfaces
• Zinc-plated finish provides corrosion resistance for indoor and sheltered environments
• Sold in a package of 10 for convenient job-site quantities

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any UNC 7/16-14 tapped hole or nut requiring a Grade 8 fastener per ASTM A354 BD specifications.

Installation Notes

Installation should be performed by a qualified mechanic or trade professional familiar with fastener torque requirements for Grade 8 hardware. Always use a properly sized hex wrench or socket to avoid rounding the head. Inspect the mating threads for damage or contamination before assembly. When used in electrical or HVAC enclosures, follow applicable NEC or manufacturer guidelines for hardware specifications.