S-92994A034 1/2"-20 Cap Nuts

Cap Nuts

0998FA00008 Cap Nuts
0998FA00008 Cap Nuts

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

Part No.
Part No. 0998FA00008
Equivalent to mcmaster :
92994A034

Basic Information

System of Measurement Inch
Nut Type Cap, Hex

Dimension Parameters

Width 3/4"
Height 13/16"

Thread Parameters

Thread Type UNF
Thread Size 1/2"-20
Thread Direction Right Hand
Thread Spacing Fine
Thread Fit Class 2B
Thread Depth 1/2"

Head Parameters

Drive Style External Hex
Cap Nut Profile Standard

Material & Strength Parameters

Material 316 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 SVHC) Compliant
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 in harsh environments due to 316 stainless steel construction, ideal for marine and chemical applications
  • Precise thread engagement with Class 2B fit for reliable, vibration-resistant connections in industrial assemblies
  • Fine threading (1/2"-20 UNF) provides increased adjustment accuracy and superior load distribution compared to coarse threads
  • External hex drive design enables easy installation and removal with standard tools, reducing assembly time
  • Full regulatory compliance with RoHS 3 and REACH standards ensures environmental safety and global market acceptance
  • Domed cap profile offers finished appearance while protecting threads from damage and contamination
  • Standard inch dimensions (3/4" width, 13/16" height) ensure compatibility with existing equipment and tooling

Professional Applications & Engineering Value

This 316 stainless steel cap nut delivers exceptional performance in corrosive environments where standard fasteners fail. The UNF fine threading (1/2"-20) provides superior resistance to vibration loosening, making it ideal for machinery, processing equipment, and marine applications where constant motion and exposure to elements are concerns. The external hex drive allows for high-torque installation without compromising the dome's protective function, while the Class 2B thread fit ensures consistent engagement without galling or cross-threading. Engineered for chemical processing plants, offshore platforms, and food-grade facilities, this cap nut combines sealing capability with the corrosion resistance needed for long-term reliability in aggressive conditions.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 3/4" width and 13/16" height, this cap nut features 1/2"-20 UNF fine threads with Class 2B thread fit for consistent performance. The right-hand thread direction and standard cap nut profile ensure compatibility with industry standards. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and workplace safety adherence.

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