S-91253A832 3/4"-16 x 2" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Alloy Steel Hex Drive Flat Head Screws

0309FA00406 Alloy Steel Hex Drive Flat Head Screws
0309FA00406 Alloy Steel Hex Drive Flat Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0309FA00406
Equivalent to mcmaster :
91253A832

Basic Information

System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 1.438"
Head Height 0.396"
Flat Head Profile Standard

Dimensions

Length 2"

Thread Parameters

Thread Type UNF
Thread Size 3/4"-16
Thread Diameter 0.75"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 1/2"
Countersink Angle 82°

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C37
Tensile Strength 130000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASTM F835
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
  • Fast delivery
  • Enjoy discounts on bulk purchases
  • Secure Payment
  • Fast Global Shipping

Key Features & Benefits at a Glance

  • Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
  • Exceptional tensile strength of 130,000 PSI ensures reliable performance under high-stress conditions.
  • Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies.
  • Fully threaded design allows for maximum grip and uniform load distribution along the entire length.
  • 1/2" hex drive enables easy installation and removal with standard tools, reducing assembly time.
  • 82° countersink angle ensures a flush, low-profile finish for streamlined applications.
  • Compliance with ASTM F835, RoHS 3, and REACH guarantees safety and regulatory adherence for global use.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this black-oxide alloy steel flat head screw addresses critical challenges such as vibration loosening and material fatigue. The UNF fine thread and Class 3A fit deliver superior holding power in machinery, automotive, and structural assemblies, minimizing the risk of failure. Its fully threaded construction ensures consistent clamping force, while the hex drive simplifies maintenance in confined spaces. Ideal for heavy-duty fastening, it combines high tensile strength with corrosion resistance, offering long-term reliability in applications where precision and durability are paramount.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit and UNF fine thread standards, ensuring precise dimensional accuracy. Manufactured in compliance with ASTM F835 specifications, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable industrial use.

🔍
Cancel