Pan Head Tapping Screws with Slot
Bracketed nominal diameters should be avoided wherever possible.
Normally these tapping screws are made in the sizes for which weight details are given. It is not practicable to make the sizes for which dashes appear instead of length data.

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TEST FOR EVALUATING THE TORQUE-TENSION RELATIONSHIP ON BOTH EXTERNALLY AND INTERNALLY THREADED FASTENERS
Cross Recessed Countersunk (Flat) Head Screws (Countersunk Heads according to ISO)
Mechanical properties of corrosion-resistant stainless-steel fasteners— Part 1 : Bolts, screws and studs
WASHER, LOCK-SPRING, HELICAL, REGULAR (MEDIUM) SERIES
Countersunk flat head screws (common head style) with type H or type Z cross recess — Product grade A — Part 1: Steel screws of property class 4.8
PIN, SPRING-TUBULAR, SLOTTED