S-91313A167 M8 x 8 mm Set Screws

Set Screws

0628FA00013 Set Screws
0628FA00013 Set Screws

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

Part No.
Part No. 0628FA00013
Equivalent to mcmaster :
91313A167

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 8 mm

Thread Parameters

Thread Type Metric
Thread Size M8
Thread Pitch 1.25 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Locking Type Serrations

Tip & Drive Parameters

Tip Type Cup
Drive Style Hex
Drive Size 4 mm

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B80

Temperature & Environment

REACH Compliant
RoHS 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
  • Exceptional holding power achieved through serrated locking mechanism that prevents loosening under vibration
  • Precise thread engagement with Class 6g thread fit ensuring reliable fastening in metric applications
  • Easy installation and removal with 4mm hex drive design, allowing efficient maintenance access
  • Enhanced grip and security from cup tip design that digs into mating surfaces for permanent positioning
  • Consistent mechanical performance maintained by Rockwell B80 hardness for durable, long-lasting service
  • Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing

Professional Applications & Engineering Value

This M8 x 1.25mm metric set screw delivers critical engineering solutions where space constraints and vibration resistance are paramount. The headless design with 4mm hex drive enables flush mounting in precision machinery, while the serrated locking mechanism provides superior anti-vibration performance in dynamic industrial environments. Manufactured from 18-8 stainless steel, it offers excellent corrosion resistance for outdoor equipment, marine applications, and food processing machinery. The coarse thread pitch combined with Class 6g thread fit ensures quick installation and reliable performance in high-stress assembly operations, making it ideal for securing gears, pulleys, and collars on rotating shafts where permanent positioning is required.

Specification Summary & Compliance

This metric set screw features M8 x 1.25mm coarse thread spacing with Class 6g thread fit tolerance for precision metric applications. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring hazardous substance restriction compliance. The right-hand thread direction and standardized metric thread type provide compatibility with industrial equipment and machinery following international fastener specifications.

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