S-91280A993 M18 x 45 mm ISO 4017, DIN 933 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 that protects against harsh industrial environments
- High tensile strength of 110,000 psi ensures reliable performance in demanding applications
- Class 8.8 strength grade provides excellent durability and load-bearing capacity
- Coarse 2.5mm thread pitch enables faster installation and better vibration resistance
- Fully threaded design offers maximum grip and uniform stress distribution
- External hex head allows for easy installation with standard tools and high torque application
- Rockwell C21 hardness maintains structural integrity under heavy mechanical stress
Professional Applications & Engineering Value
This M18 hex head screw delivers exceptional engineering value through its Class 8.8 steel construction and zinc plating, specifically designed to address common industrial challenges. The fully threaded metric design with coarse 2.5mm pitch provides superior holding power in heavy machinery, structural steel connections, and equipment assembly where vibration resistance is critical. The external hex drive ensures secure fastening even in high-torque applications, while the right-hand thread configuration maintains compatibility with standard industrial equipment. Engineered to withstand extreme mechanical stress, these industrial screws prevent joint failure in construction, automotive, and manufacturing applications where reliability is paramount.
Specification Summary & Compliance
This fastener meets ISO 4017 specifications (equivalent to DIN 933) with Class 6h thread fit tolerance for precise engagement. The 45mm length and M18 x 2.5mm thread size ensure dimensional accuracy across production batches. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming the absence of restricted substances. The Class 8.8 strength rating corresponds to international metric bolt classification systems, providing assurance of consistent mechanical properties for engineering applications.
