S-91210A430 M8 x 20 mm DIN 914, ISO 4027 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior holding power with 90° cone point design that bites into materials for permanent, vibration-resistant fastening
- Exceptional strength and durability from alloy steel construction with Rockwell C45 hardness rating for long-term reliability
- Precise thread engagement with Class 5g6g thread fit ensuring consistent performance in demanding applications
- Easy installation and removal using standard 4mm hex key drive for efficient maintenance and adjustments
- Reliable coarse threading (1.25mm pitch) that resists loosening under vibration and provides quick assembly
- Space-saving headless design allowing flush mounting where clearance is limited
- Global compliance assurance meeting DIN 914/ISO 4027 standards plus RoHS 3 and REACH environmental regulations
Professional Applications & Engineering Value
This M8 set screw delivers critical engineering solutions where permanent positioning and vibration resistance are paramount. The alloy steel construction with Rockwell C45 hardness provides exceptional shear strength for securing pulleys, gears, and collars on shafts in machinery and automotive systems. The 90° cone point creates concentrated pressure that digs into mating surfaces, preventing rotational slip even under high torque loads. The hex socket drive enables high tightening torque application in confined spaces, while the coarse metric thread (1.25mm pitch) ensures rapid installation and superior resistance to vibrational loosening. Ideal for precision manufacturing equipment, industrial automation systems, and heavy-duty mechanical assemblies requiring reliable, permanent fastening solutions.
Specification Summary & Compliance
This metric set screw features M8 x 1.25mm coarse threading with Class 5g6g thread fit tolerance for precision engagement. Manufactured to DIN 914 and ISO 4027 specifications with 20mm length and 4mm hex drive. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global industrial markets.
