1.Free precut services 2.Good quality

     Metal spirals are made of imported nylon coated wire. The surface of the nylon coating is smooth and lustrous and the core wire rgid, offering far better durability and appearance other types of plastic coated wire.

Advantage:

Free precut services;Good quality;Full range of specification size from 1/4'' to 2'';Wide choices of colors.

Nylon-coated single spiral wire specification:

Coil Diameter		Recommended Max.Book Thickness	Pitch
Inch            mm		mm	mm
1/4	6.4	3.4	6
5/16	7.9	4.9	6
3/8	9.5	6.5	6
7/16	11.1	8.1	6
1/2	12.7	9.7	6
9/16	14.3	11.3	6
5/8	15.9	12.9	6
3/4	19.1	15.1	6
7/8	22.2	18.2	6 or 8
1	25.4	20.4	6 or 8
1-1/4	31.8	25.8	6 or 8
1-1/2	38.1	32.1	6 or 8
2	50.8	42.8

 

Our standard pitch is 6mm, spirals of other pitches are available on request.