S-5 M8-1.25x20mm Flanged Bolt

The S-5! M8-1.25×20mm Flanged Bolt is a 13mm hex flange-headed stainless steel bolt, 20 millimeters in length with metric M8-1.25 threading. It is used extensively in GripperFix Utility Systems, regular or mini clamps, and wherever a longer bolt is needed for accessories or hardware attachments. The flange under the head serves to distribute load and reduce the need for a separate washer. Material is A2-70 (300 series) stainless steel.

Key Features:

• 20mm length gives extra bolt depth where needed

• Hex head with integral flange for load distribution

• Metric fine thread: M8-1.25 specification

• Stainless steel construction (A2-70 / 300 series) for corrosion resistance

• Compatible with GripperFix components and virtually all S-5 clamps or brackets

• Thread size: M8-1.25 (metric)
• Bolt length: 20 mm
• Head style: Hex flange head, approximately 13 mm across flats
• Material: A2-70 / 300 series stainless steel
• Typical packaging: 250 pieces
• Includes: One flanged bolt (single unit)

• Select the component (clamp, bracket, or accessory) requiring attachment.
• Position the accessory or l-foot over the bolt hole in the clamp or bracket.
• Insert the M8-1.25×20mm flanged bolt through the aligned holes.
• Tighten the bolt until the flange head is seated flush, avoiding over-torque.
• Verify that any accessory is aligned and secure.
• Periodically inspect the bolt for corrosion, tightness, especially in weather-exposed applications.

Q: What thread specification does this bolt use?
A: M8-1.25 metric thread.

Q: What material is this bolt made from?
A: Stainless steel A2-70 (300 series).

Q: What applications is the 20mm length needed for?
A: Situations where deeper bolt reach is required — GripperFix rails, thicker mounting brackets, stacked components, or when using accessories with some height.

Q: Can this bolt be used with both standard and mini S-5 clamps?
A: Yes; it's compatible wherever an M8-1.25×20mm flanged bolt is needed in S-5 clamp, bracket, or utility hardware design.