Friday, April 6, 2018
These are custom 4140 steel shoulder bolts we supplied to our automotive customer at 100 pieces. 4140 steel material was used with heat treat to achieve 37-44 RC, with plain finish. The shoulder measured M11.5 x 136MM with a 1.15MM groove approximately 35MM from the special hex head. The special dog point measures 10.447MM/10.540MM by 5.7MM in length. Lead time for this 100 piece domestic batch was approximately 6 weeks from order confirmation.