Value Collection D39183 Hex Cap Screw 3/4-10 X 5-1/2 in Grade 8

Product Description

The VALUE COLLECTION D39183 is a Grade 8 steel hex head cap screw sized 3/4-10 x 5-1/2 inches, designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. The 3/4-10 thread designation indicates a 3/4-inch nominal diameter with 10 threads per inch on a Unified National Coarse (UNC) thread form. The fastener is partially threaded, leaving a smooth shank section under the head for shear-loaded joint designs. A zinc yellow dichromate finish provides corrosion resistance and is a standard indicator of Grade 8 specification. Machinists, millwrights, and maintenance technicians install this type of fastener across a wide range of heavy-duty bolted connections.

This cap screw is appropriate for high-load bolted joints in equipment frames, mounting brackets, structural steel connections, and machinery assemblies where a high-strength UNC fastener is specified. The Grade 8 rating makes it suitable for applications requiring greater tensile and proof-load strength than Grades 2 or 5 can provide. The partially threaded configuration is commonly used where the joint design calls for a defined grip length or where the shank must span through a clearance hole before engaging a nut or tapped bore.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 3/4-10 UNC thread form — 3/4-inch diameter, 10 threads per inch
• 5-1/2-inch length measured under the head
• Partially threaded shank for shear-load and grip-length applications
• Zinc yellow dichromate finish for corrosion resistance and Grade 8 identification
• Meets ASME B18.2.1 and SAE J429 dimensional and material standards

Compatibility

Designed as a standard inch-series hex head cap screw for use in any application specifying a 3/4-10 UNC Grade 8 partially threaded fastener per ASME B18.2.1 and SAE J429.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a standard 1-3/16-inch hex wrench or socket. Always confirm the mating thread, nut grade, and joint clamping requirements before torquing. Do not mix Grade 8 fasteners with lower-grade nuts or tapped holes that are not rated for the corresponding load. Follow applicable engineering specifications or structural codes for proper torque values, as no torque specification is provided with this listing.