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product information- Standard: DIN 7991,
- Countersunk Head Capscrews also known as flat head capscrews,
- DIN 7991 are not intended for high strength applications,
- To tighten insert key into socket and apply the torque on the nut while holding the key. Should however, the torque be applied on the screw itself it should be reduced accordingly,
- Head Angle up to M20 is 90° and over M20 is 60°. Inch Series thread have a different head angle. Unified are 80° and British are 90°.
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