BTH-1 has 17/64" cored hole 1" deep from small end and 1/2" diameter counterbore extending from large end to meet small hole. Used for revolving handle. All others have threaded brass insert.
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TrustScore 4.5 | 7,300+ reviews
Khalid Z.
Great experience from order to delivery. Highly recommended!
1 week ago
Farhan Q.
The delivery time was excellent, and the packaging was secure.
