Features
For parts made of relatively soft materials such as aluminum, we process a female thread for inserting an insert coil in order to strengthen the female thread and increase durability.
There are two types of chamfers: 1.5P blind hole and 5P through hole.
Use
Work material: For aluminum rolled materials, aluminum alloy castings, zinc alloy castings.
Specification
Tip: Top
Accuracy: 1b
Nominal dimension: UNF1/4
Thread length (mm): 19
Total length (mm): 70
Shank diameter (mm): 6.2
Shank square part (mm): 5
Bottom Hole diameter (mm): 6.68
Number of threads: 28
Surface treatment: Non-coating
Specification2
Processed screw: Unified screw
Number of chamfered threads: 1.5
Surface treatment: Non-coating
Shank length (mm): 36
Length of square shank (mm): 8
Number of grooves: 4
Outside diameter standard Dimensions (mm): 7.528
Material/Finish
High speed tool steel (HSS)
Set contents/accessories
caution
