Generally
Stainless polished star screw countersunk with flat head. 8-32 thread = 4.17mm diameter
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Screw 8-32 Approx: 4.17mm Stainless, polished, countersunk, flat head, cross groove
10 kr
Tip!
Check the picture how to measure the length of a screw with a countersunk head.
UNC Or UNF?
The difference between UNC and UNF is the number of threads per inch.
UNF is fine-threaded with more threads per inch than the coarse-threaded UNC thread.
The smaller sizes are divided from 0 to 12 and are called numerical threads
The larger sizes start with 1/4″ and so on. Check the table below. If you are unsure which thread you have, count the number of threads in 1 inch = 25.4mm
