Part no.Internal ThreadInternal Thread ClassExternal ThreadExternal Thread ClassInsert Material
3332-1/4XHW1/4-202B1/2-132BC12L14 Carbon Steel
3332-5/16XHW5/16-182B9/16-122BC12L14 Carbon Steel
3332-3/8XHW3/8-162B5/8-112BC12L14 Carbon Steel
3332-1/2XHW1/2-132B7/8-92BC12L14 Carbon Steel