S-93285A425 M6 x 25 mm ASME B18.3.6M Set Screws

Set Screws

0645FA00037 Set Screws
0645FA00037 Set Screws

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

Part No.
Part No. 0645FA00037
Equivalent to mcmaster :
93285A425

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 25 mm

Thread Parameters

Thread Type Metric
Thread Size M6
Thread Pitch 1 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Tip Type Soft
Tip Length 1.6 mm
Tip Diameter 3.2 mm
Tip Material Nylon 6/6 Plastic
Tip Color Green
Tip Temperature Range -50° to 250° F
Drive Style Hex
Drive Size 3 mm

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B80

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.3.6M
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Vibration-Resistant Locking: Nylon 6/6 plastic tip maintains secure fastening under dynamic loads, preventing loosening in high-vibration environments.
  • Corrosion-Resistant Durability: 18-8 stainless steel construction ensures long-term reliability in humid or corrosive industrial settings.
  • Precision Thread Engagement: Class 6g thread fit provides consistent, accurate mating with components, reducing assembly errors.
  • High-Temperature Suitability: Nylon tip withstands temperatures from -50° to 250°F, ideal for applications with thermal cycling.
  • Easy Installation & Removal: 3 mm hex drive allows for quick, tool-friendly adjustments without specialized equipment.
  • Headless Space-Saving Design: Flush mounting minimizes protrusion, perfect for compact assemblies and rotating parts.
  • Regulatory Compliance Assurance: Meets ASME B18.3.6M, RoHS 3, and REACH standards for safe, globally accepted use.

Professional Applications & Engineering Value

This M6 x 1 mm coarse thread set screw is engineered to address common industrial challenges like component slippage and vibration-induced failure. The 18-8 stainless steel body offers excellent corrosion resistance, while the green nylon 6/6 plastic tip provides non-marring, vibration-resistant locking—ideal for securing gears, pulleys, and collars on shafts without damaging surfaces. With a Rockwell B80 hardness and Class 6g thread fit, it ensures precise torque transmission and repeatable performance in machinery, automotive, and electronics assemblies. The headless hex drive design simplifies maintenance in confined spaces, making it a reliable choice for engineers seeking durability and compliance in demanding applications.

Specification Summary & Compliance

This metric set screw features M6 x 1 mm coarse threads with Class 6g tolerance for accurate fit, and a length of 25 mm. Manufactured to ASME B18.3.6M specifications, it includes a 3.2 mm diameter nylon tip and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for environmental safety.

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