S-91771A916 0-80 x 5/32" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Stainless Steel Phillips Flat Head Screws

0320FA00344 Stainless Steel Phillips Flat Head Screws
0320FA00344 Stainless Steel Phillips Flat Head Screws

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

Part No.
Part No. 0320FA00344
Equivalent to mcmaster :
91771A916

Basic Information

System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.112"
Head Height 0.026"
Flat Head Profile Standard

Dimensions

Length 5/32"

Thread Parameters

Thread Type UNF
Thread Size 0-80
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Phillips
Drive Size No. 0
Countersink Angle 100°

Material & Strength

Material Passivated 18-8 Stainless Steel
Hardness Rockwell B80
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.6.3
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
  • High tensile strength of 80,000 psi ensures reliable fastening under demanding mechanical loads
  • Precision Class 2A thread fit guarantees smooth installation and secure connections in fine-thread applications
  • 100° countersink angle and flat head design provides flush mounting for clean, professional finishes
  • Full threading along the 5/32" length maximizes grip and load distribution across the entire fastener
  • Rockwell B80 hardness offers excellent durability and resistance to wear during repeated use
  • Compliance with ASME B18.6.3, RoHS 3, and REACH ensures regulatory adherence for global supply chain integration

Professional Applications & Engineering Value

These 0-80 UNF flat head Phillips machine screws deliver critical performance in precision assemblies where space constraints and corrosion resistance are paramount. The passivated 18-8 stainless steel material combats oxidation in humid or chemical-exposed settings, extending service life in electronics, instrumentation, and aerospace components. The fine UNF thread spacing and Class 2A fit provide superior vibration resistance and clamping force in thin materials, reducing the risk of loosening. With a 100° countersink angle, they sit flush to prevent snagging and maintain aerodynamic or aesthetic surfaces. Engineered to meet ASME B18.6.3 specifications, these screws ensure interchangeability and reliability in high-stakes industrial applications.

Specification Summary & Compliance

This fastener features a 0-80 UNF thread with Class 2A tolerance for precise fit, right-hand thread direction, and full threading across its 5/32" length. Manufacturing adheres to ASME B18.6.3 standards, with compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.

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