Paulin Metric Hex Flange Bolts Yellow Zinc Class 8.8 Coarse Thread

Metric 8.8 Flange Bolts are designed with an extensive surface area beneath the head, functioning similarly to a washer. These bolts are coated with yellow zinc, enhancing their resistance to corrosion, making them well-suited for both indoor environments and industrial settings. With a heat treatment process, Class 8.8 fasteners achieve a level of strength comparable to that of Grade 5 fasteners. They boast a tensile strength of 800 MPa, approximately 118,000 psi, which is similar to SAE Grade 5 standards. The head of these bolts is marked with an "8.8" to denote their class, and they are constructed from medium carbon steel.

• Yellow zinc plated fasteners have good corrosion resistant qualities and are a good choice for indoor and industrial applications.
• Head marking 8.8 Made from medium carbon steel.
• Heat treated and are similar in strength to grade 5 fasteners.
• Features a built-in washer-like flange just beneath the head, providing a wide area for distributing the load.
• Available in Full thread (FT) lengths in coarse, fine or extra fine threads.
• Compliance with the JIS B1189 standard ensures that these flange bolts meet consistent quality and performance in products and structures that incorporate these fasteners.
• Property Class: 8.8 (nominal tensile strength 800 MPa or about 118,000 p.s.i., similar to SAE Grade 5).
• Across Flats (W): 8mm
• Height: 5mm