Diameter 20mm Pitch 4mm Trapezoidal Lead Screw with Black Oxide

Diameter 20mm Pitch 4mm Trapezoidal Lead Screw with Black Oxide

Both right hand thread and left hand thread are available

What is the lead and pitch of lead screw?

Lead=pitch*starts

Lead screw introduction---Thread types

Available Material for screw: ASTM1045, SUS303, SUS304, SS316, SS316L

Material for nut: Brass, Tin bronze, Phosphor bronze, Aluminum bronze, POM, PEK, nylon, POK, Stainless steel, 1045, Zinc alloy, Brass+Plastic, Aluminum alloy+Plastic, Brass+Steel, Self lubricating(No oil type)

Quality standard: ISO2901-4, DIN103

Clearance: 7e

A broad range of lead nuts are available,other nut type or size can be made upon drawing

Other ready models are available:

ALM lead screw Feature: Self locking, High surface smoothness, low friction, good straightness, flexible production

Lead screw Application: 3D printer, CNC router, medical machine, Semiconductor and LCD Production Equipment, Machine Tools and Injection Molding Machines, Semiconductor Manufacturing Equipment, Laboratory Equipment etc..

Packing and Delivery:In cartons or wooden cases 

Sample order:DHL, FeDex, UPS VIP account with discount.So you can get favorable shipping freight.

Bulk order:Negotiated professional shipping agent by air or by sea.

Inform us your requirement for a quote now!

ALM possesses factory occupying 8000 square meters with 120 employees.Among which,more than 30 professional technical engineers in lead screws,ball screws and the mating linear motion parts. 

All factory key manufacturing and testing equipments are imported from Japan, like CNC lathe, internal and external high-precision grinder, screw grinding machine, etc. ALM has passed the ISO9001:2015 and TS16949 Quality Management System. 

The R&D achievements over many years bring the company more than 25 national patents on lead screw and ball screw design.

Quality testing facilities