Thomson currently has two account systems - one for the website and CAD model downloads, and one for e-commerce. We understand that two logins is an inconvenience and are working to consolidate our systems into one login process. Until we’re able to consolidate the two logins, please follow these guidelines:
Customer Service Chat (ONLINE) Customer Service Chat (OFFLINE)
A great lead nut can’t perform without a top quality lead screw. Thomson BSA® screws are constructed of 300 series stainless steel and offer a high luster surface finish with excellent corrosion resistance. Standard sizes are available from 3/16” to 3” diameters. All lead screws are precision rolled to achieve lead accuracies of up to .003 inch per foot. We use optimized thread forms on most sizes to achieve the best possible performance when used with our polymer nuts. We also configure the ends of the majority of the screws we ship to customer requirements.
Dia. (mm) |
Lead (mm) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 16 | 20 | 25 | 35 | 45 | TR>|
10 | X | X | X | X | X | X | X | |||||||
12 | X | X | X | X | X | X | X | X | ||||||
16 | X | X | X | X | X | X | ||||||||
20 | X | X | X | X | X | X | ||||||||
24 | X |
Dia. (in) |
Lead (inch, unless otherwise noted) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
.050 | .0625 | .063 | 2 mm |
.083 | .100 | .125 | .167 | .200 | .250 | .375 | .500 | .800 | 1.00 | 1.20 | 2.00 | TR>|
3/16 | X | |||||||||||||||
1/4 | X | X | X | X | ||||||||||||
5/16 | X | X | X | X | ||||||||||||
3/8 | X | X | X | X | X | X | X | X | X | X | X | |||||
7/16 | X | X | X | |||||||||||||
1/2 | X | X | X | X | X | X | X | |||||||||
5/8 | X | X | X | X | X | |||||||||||
3/4 | X | X | X | X | X | X | X | |||||||||
1 | X | X | X | X | X | X | ||||||||||
1 1/4 | X | X | ||||||||||||||
1 1/2 | X | X | X | X | ||||||||||||
2 | X | |||||||||||||||
2 1/4 | X | |||||||||||||||
2 1/2 | X | |||||||||||||||
2 3/4 | X | |||||||||||||||
3 | X |
BSA Lead Screws | 1455 KB | |
BSA Lead Screws | 1463 KB | |
BSA Lead Screws | 2713 KB |
Lead Screws - Metric | — | — | |
Lead Screws - Inch | — | — |
To provide better service to you on our websites, we and our service providers use cookies to collect your personal data when you browse. For information about our use of cookies and how to decline them or turn them off please read our cookie policy [available here].