S-99477A126 3/8"-16 x 1/2" ASME B18.3, UL 94 HB Plastic Socket Head Screws
Plastic Socket Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior chemical resistance from polypropylene construction for reliable performance in harsh environments
- High tensile strength of 4500 psi provides dependable fastening for industrial applications
- Wide temperature tolerance (-20° to 180°F) ensures consistent performance across varying operating conditions
- Precise Class 2A thread fit guarantees smooth installation and secure fastening alignment
- 5/16" hex drive socket head enables efficient installation with standard tools and reduced stripping risk
- Full thread coverage along the 1/2" length maximizes engagement and load distribution
- Comprehensive compliance with ASME B18.3, RoHS 3, REACH, and UL 94 HB standards ensures quality and safety
Professional Applications & Engineering Value
These polypropylene socket head cap screws deliver exceptional value in applications requiring chemical resistance and electrical insulation. The 3/8"-16 UNC coarse thread design provides rapid installation while maintaining secure fastening in plastic assemblies, electrical enclosures, and chemical processing equipment. The off-white polypropylene material offers excellent durability against corrosive substances, moisture, and UV exposure, making these industrial screws ideal for outdoor and harsh environment applications. The standard hex socket head profile combined with the right-hand thread direction ensures compatibility with existing tooling and assembly processes, reducing installation time and improving production efficiency in manufacturing and maintenance operations.
Specification Summary & Compliance
These socket head cap screws feature precise Class 2A thread fit according to UNC standards with 3/8"-16 coarse thread spacing and 1/2" fully threaded length. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. The fasteners meet RoHS 3 (2015/863/EU) compliance for hazardous substance restriction, REACH (EC 1907/2006) compliance for chemical safety, and UL 94 HB flammability rating for material safety in various applications.
