S-93285A420 M6 x 16 mm ASME B18.3.6M Set Screws

Set Screws

0645FA00036 Set Screws
0645FA00036 Set Screws

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

Part No.
Part No. 0645FA00036
Equivalent to mcmaster :
93285A420

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 16 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 tip maintains secure fastening under dynamic loads, preventing loosening in machinery and equipment.
  • Superior corrosion resistance: 18-8 stainless steel construction ensures long-term reliability in humid or chemically aggressive industrial environments.
  • Precision thread engagement: Class 6g thread fit guarantees consistent, reliable mating with components, reducing assembly errors and rework.
  • High-temperature durability: Nylon tip performs reliably across a wide temperature range from -50° to 250° F, suitable for varied operating conditions.
  • Flush, space-saving design: Headless configuration with 3 mm hex drive allows for discreet installation in tight spaces without protruding hardware.
  • Enhanced surface protection: Soft nylon tip prevents marring or damage to sensitive shaft surfaces, preserving component integrity.
  • Regulatory compliance assurance: Meets ASME B18.3.6M, RoHS 3, and REACH standards, ensuring global acceptability for OEM and MRO applications.

Professional Applications & Engineering Value

This M6 hex headless set screw delivers critical engineering solutions for precision assembly challenges. The 18-8 stainless steel body provides excellent corrosion resistance, essential for food processing, marine, or outdoor equipment where moisture exposure is constant. Its Class 6g thread fit with 1 mm coarse pitch enables rapid installation while maintaining secure fastening in pulleys, gears, and collars. The green nylon 6/6 tip offers reliable vibration damping, preventing positional drift in rotating assemblies without requiring additional locking hardware. This combination of metric thread specifications, material durability, and flush mounting capability makes it ideal for automated manufacturing systems, precision instrumentation, and conveyor equipment where space optimization and maintenance reduction are priorities.

Specification Summary & Compliance

Manufactured to ASME B18.3.6M specifications with Class 6g thread tolerance for precision fit. Features M6 x 1 mm coarse thread with right-hand direction and 16 mm length. The 3 mm hex drive provides secure tool engagement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.

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