JAM BUILDING PRODUCTS Technical Information

8-19

Use of Fasteners1. Clearance Holes for Fasteners with Screw Thread

2. Length of Projection of Bolt and Screw Ends with Metric (ISO) Screw Thread

Examples:

- hexagon and slotted (castle) nuts : v = nut height + 2P

- prevailing torque nuts : v = nut height + 3P

- nominal length L = griplength Lk + projection length v.

The calculated values have to be rounded off to the next larger standardized length.

PERFECT.HK - Creativity in Fastening

3. Clamping force as a function of the applied torque are given in the table below:

Technical Information JAM BUILDING PRODUCTS

8-20

PERFECT.HK - Creativity in Fastening

JAM BUILDING PRODUCTS Technical Information

8-21

Conversion Tables

PERFECT.HK - Creativity in Fastening

Technical Information JAM BUILDING PRODUCTS

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PERFECT.HK - Creativity in Fastening