S-91280A525 M8 x 14 mm ISO 4017, DIN 933, SAE J1199, ISO 898 Medium-Strength Metric Class 8.8 Steel Hex Head Screws
Medium-Strength Metric Class 8.8 Steel Hex Head 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 corrosion resistance with zinc plating for extended service life in harsh industrial environments
- High tensile strength of 110,000 psi ensures reliable performance in demanding heavy-duty applications
- Class 8.8 strength grade provides excellent load-bearing capacity and mechanical reliability
- Coarse thread design (M8 x 1.25mm) enables faster installation and reduced cross-threading risks
- External hex drive with 13mm head offers secure tool engagement and easy installation with standard wrenches
- Full threading along 14mm length ensures maximum grip and uniform stress distribution
- Compliance with multiple international standards including ISO 4017 and DIN 933 guarantees quality and interchangeability
Professional Applications & Engineering Value
These M8 hex head screws with Class 8.8 strength rating and zinc plating are engineered to solve critical fastening challenges in industrial machinery, structural assemblies, and heavy equipment. The coarse thread pitch of 1.25mm combined with external hex drive design enables rapid installation while minimizing the risk of thread damage during assembly. With Rockwell C21 hardness and 110,000 psi tensile strength, these fully threaded metric screws maintain integrity under vibration and dynamic loads, making them ideal for automotive, construction, and manufacturing applications where reliability is paramount. The zinc-plated steel construction provides essential corrosion protection, extending maintenance intervals in challenging operating conditions.
Specification Summary & Compliance
This M8 hex head screw features Class 6h thread fit tolerance ensuring precise engagement and consistent performance. Manufactured to ISO 4017, DIN 933, and SAE J1199 specifications with 14mm length and 1.25mm coarse pitch. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for safety and sustainability.
