DeLuxe Stitcher

Flat Knife Screw

CB312B is a flat knife screw listed in the stitching head assembly of the S3A 7/8" book stitcher. In the parts list it appears as index 122 and one unit is required per assembly.

Manufacturing · Packaging · SPARE PART

CB312B

DO YOU NEED THIS REFERENCE?

We confirm the exact reference, price, availability and lead time with you before purchasing.

Previously managed reference · Not available inventory. We confirm availability, price and lead time for each request.

Ask about this reference Back to brands and parts

Technical specifications

Brand	DeLuxe Stitcher
Category	SPARE PART
Industry	Manufacturing · Packaging
Part number	CB312B
Spare part description	Flat knife screw
Stated compatible equipment	S3A 7/8" book stitcher
Parts-list assembly	Stitching head assembly
Parts-list index	122
Quantity required per assembly	1 unit
Related equipment application	Flat-knife cutting system
Standard stitch width of S3A 7/8" equipment	7/16"

Summary datasheet — DeLuxe Stitcher CB312B

CB312B is a mechanical spare part identified as a flat knife screw for the stitching head of the S3A 7/8" book stitcher. DeLuxe Stitcher documentation places it in the stitching head assembly parts list at index 122, with one unit required.

This screw is associated with the flat knife holder, knife spring and flat knife in the wire cutting mechanism. Its role in the assembly is to secure the flat knife, so it is typically treated as a maintenance spare for the cutting system.

The S3A 7/8" machine is used for book-stitching or bindery work with flat and saddle work configurations. The S3A equipment page lists round and flat wire configurations, a 7/16" standard stitch width and a capacity from 2 sheets up to 7/8" for the S3A 7/8" model.