Installation tool: 
Quality certification:

 Features:

Self tapping inserts(also known as self threaded inserts)are cylindrical metal bushings with internal and external threads and are specially designed to cut their own threads as they are being driven into a drilled hole.

 

 

Advantages:

No pre-tapping required

 

Very high pull-out resistance

 

Unlimited thread re-usability

 

Easy to install, standard taps can be used

 

Wide variety of styles to fit almost every application

 

 

Category:

302 self-tapping with cutting slot 

 

307/308 self-tapping with three cutting bores 

 

 

Material&plating:

Material: stainless steel, carbon steel,brass

 

Plating: zinc plated, yellow chromated

 

 

Applications:

Widely used in large automobile manufacturing, metallurgy, electric power, machinery,

Chemical fiber, chemical industry.

 

 

Installation process:

1.Drilling          2.Installation

 

 

 Technical parameter:(commonly used)

302 selftapping  with cutting slot	Length (mm)	External  Thread	Dia.of reference  Bore hole(mm)			Min.Depth  of borehole(mm)
			Plastics	Al. alloy	Cast iron
M2.5-0.45	6	M4.5-0.5	4.0-4.1	4.1-4.2	4.2-4.3	8
M3-0.5	6	M5-0.5	4.5-4.6	4.6-4.7	4.7-4.8	8
M3.5-0.6	8	M6-0.75	5.3-5.4	5.5-5.6	5.6-5.7	10
M4-0.7	8	M6.5-0.75	5.8-5.9	6.0-6.1	6.1-6.2	10
M5-0.8	10	M8-1.0	7.1-7.2	7.3-7.5	7.5-7.6	13
M6-1.0	12	M9-1.0	8.1-8.2	8.3-8.5	8.5-8.6	15
M6-1.0	14	M10-1.5	9.0-9.2	9.2-9.3	9.3-9.4	17
M8-1.25	15	M12-1.5	10.6-10.8	11-11.2	11.2-11.4	18
M10-1.5	18	M14-1.5	12.6-12.8	13.0-13.3	13.2-13.4	22
M12-1.75	22	M16-1.5	14.6-14.8	15.0-15.3	15.2-15.4	26
M14-2.0	24	M18-1.5	16.6-16.8	17.0-17.3	17.2-17.5	28
M16-2.0	22	M20-1.5	18.6-18.8	19.0-19.3	19.2-19.5	27

 

 

 

 Picture: