S-91465A263 3/4"-10 x 6" ASTM A307 Square Head Screws

Key Features & Benefits at a Glance

• Secure tool engagement with 1 1/8" square head and external square drive for reliable torque application
• Durable steel construction with ASTM Grade A material providing consistent performance in industrial environments
• Optimized thread design featuring 3/4"-10 UNC coarse threads for faster installation and reduced cross-threading risk
• Precise thread fit with Unified Standard Class 2A tolerance ensuring consistent mating with nuts and threaded components
• Partial threading configuration allowing for both clamping and alignment functions in assembly applications
• Environmental compliance with RoHS 3 (2015/863/EU) standards for safe use in regulated industries
• Reliable mechanical properties including 60,000 psi tensile strength and Rockwell B69 hardness for low-strength applications

Professional Applications & Engineering Value

This heavy-duty square head screw delivers exceptional value in industrial fastening applications where reliability and ease of installation are paramount. The ASTM A307 Grade A steel construction provides sufficient strength for structural connections, machinery assembly, and equipment maintenance while the coarse UNC threads enable quick installation even in challenging conditions. The 1 1/8" square head with external drive design ensures positive tool engagement, preventing slippage during high-torque applications. Particularly suited for construction, agricultural equipment, and industrial machinery, this partially threaded fastener offers the versatility needed for both clamping and alignment functions. The 6" length with 1 3/4" minimum thread length provides ample engagement for secure connections in heavy-duty assemblies.

Specification Summary & Compliance

This square head screw meets Unified Standard Class 2A thread fit specifications with 3/4"-10 UNC coarse threads and complies with ASTM A307 manufacturing standards. The fastener features precise dimensional control with 1/2" head height and 1 1/8" head width for consistent performance. Manufactured from ASTM Grade A steel with 60,000 psi tensile strength and Rockwell B69 hardness, this product is RoHS 3 (2015/863/EU) compliant for environmental safety and suitable for right-hand thread applications requiring low-strength fastening solutions.