CONTRACTOR SELECT — Carriage Bolts — Carriage Bolt, 5/16-18 x3/4, PK100

CONTRACTOR SELECT Carriage Bolts built for consistent performance in maintenance, inspection, and replacement work.

Quick specs

• Grade: 2
• Carriage Bolt Type: Carriage Bolt
• Tensile Strength: 74,000 psi
• Thread Size: 5/16"-18
• Manufacturer Part Number: U08305.031.0075
• UPC: -

Product information

• UPC: -
• Country of Origin: Multiple
• Manufacturer Part Number: U08305.031.0075

Dimensions

• Screw Size: 5/16 in
• Thread Size: 5/16"-18
• Fastener Length: 3/4 in
• Neck Height: 11/64 in
• Square Height: 0.156 in
• Head Dia.: 0.688 in
• Drill Size: 21/64 in
• Head Height: 11/64 in
• Square Width: 0.307 in
• Maximum Head Diameter: 23/32 in
• Minimum Head Height: 5/32 in
• Minimum Head Diameter: 11/16 in
• Maximum Neck Width: 21/64 in
• Maximum Head Height: 11/64 in
• Minimum Neck Height: 5/32 in
• Minimum Neck Width: 5/16 in
• Maximum Neck Height: 3/16 in
• Neck Width: 5/16 in
• Head Width: 45/64 in

Details

• Material Grade: Grade A
• For Use With: Grade 2 Zinc Nuts
• Head Type: Round
• Fastener Thread Type: UNC (Coarse)
• Head Style: Round
• Carriage Bolt Type: Carriage Bolt
• Grade: 2
• Tensile Strength: 74,000 psi
• Fastener Industry Standards: ASME B18.5
• Fastener Thread Direction: Right Hand

This Carriage Bolts is well-suited for replacement, upgrade, and stock-room use.

Recommended for field service tasks and on-site replacement and intended for professional buyers focused on durability and uptime.

Highlights

• Suitable for maintenance, repair, and project-based procurement.
• Helps keep specifications consistent across replacements and replenishment cycles.
• Designed for professional use where predictable fit and handling are important.
• Works well in standardized part lists and preventative maintenance schedules.

Notes: Verify measurement standards, tolerances, and compatibility with existing assemblies before purchase.