S-93711A300 0.174" ID x 0.267" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Split Lock Washers for Socket Head Screws

1310FA00047 Split Lock Washers for Socket Head Screws
1310FA00047 Split Lock Washers for Socket Head Screws

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

Part No.
Part No. 1310FA00047
Equivalent to mcmaster :
93711A300

Basic Information

System of Measurement Inch
Washer Type Split Lock
Specifications Met ASME B18.21.1

Dimension Parameters

ID 0.174"
OD 0.267"
Thickness 0.047"

Material & Strength Parameters

Material Black-Oxide 18-8 Stainless Steel
Hardness Rockwell C35

Installation & Application Parameters

For Screw Size No. 8

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant

Special Type Parameters

Split Lock Washer Type Standard
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 vibration resistance with split lock design prevents loosening under dynamic loads
  • Exceptional corrosion protection from black-oxide coated 18-8 stainless steel construction
  • Reliable hardness performance with Rockwell C35 rating ensuring consistent spring action
  • Precision dimensional fit with 0.174" ID specifically engineered for No. 8 screw applications
  • Industry-standard compliance meeting ASME B18.21.1 specifications for quality assurance
  • Environmental regulation adherence with full RoHS 3 and REACH compliance
  • Optimized locking performance through standard split design for secure fastening in demanding environments

Professional Applications & Engineering Value

This split lock washer delivers critical vibration-resistant fastening solutions for industrial equipment, machinery, and automotive assemblies where constant motion and stress would compromise ordinary fasteners. The black-oxide 18-8 stainless steel construction provides dual protection: the base material offers excellent corrosion resistance while the surface treatment enhances durability in harsh operating conditions. With its standard split lock design and precise 0.174" internal diameter, this washer generates consistent spring tension against No. 8 screws, maintaining clamp load integrity in high-vibration environments. The combination of Rockwell C35 hardness and ASME B18.21.1 compliance ensures reliable performance in critical applications where fastener failure is not an option, from manufacturing equipment to electrical enclosures exposed to corrosive elements.

Specification Summary & Compliance

This split lock washer features precise dimensions of 0.174" ID × 0.267" OD × 0.047" thickness, specifically designed for No. 8 screw applications. Manufactured to ASME B18.21.1 standards for dimensional accuracy and performance requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. Material certification confirms 18-8 stainless steel composition with black-oxide surface treatment and Rockwell C35 hardness specification.

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