Block bolt 1317/3318Z JCB, genuine

Block bolt 1317/3318Z is a genuine JCB part for the JCB machines. According to the product card, this part is a block bolt.

A bolt is a threaded fastener that clamps two or more parts together and holds them in place. The strength of the joint depends on the preload created when the bolt is tightened to the correct torque: the bolt stretches slightly and presses the parts together like a spring. A loose bolt works under vibration, ovals its holes and finally breaks from fatigue, while an overtightened bolt yields and loses its thread. On machines, bolts are therefore tightened to the specified torque and checked regularly.

Specifications

Compatibility

According to the product card, 1317/3318Z is a bolt. Fit is confirmed by the part number. The catalogue also has the aftermarket version of this part. Other parts are in Fasteners.

Fitting

Before fitting the bolt, clean the threaded hole and remove any old thread-locker. Where required, apply the specified thread-locker or oil to the threads and tighten the bolt with a torque wrench to the specified value. In joints with several bolts, tighten them in a cross pattern and in stages.