Product description锛?/strong> Bolts for connection of valve parts and fittings. The material of the product is made of high quality carbon steel and alloy steel with high precision. High strength, excellent high temperature, low temperature performance, etc. American standard bolts :B7, B7M, L7, L7M, B16, B8, B8M American standard heavy duty nuts :2H, 2HM, 4,7,8,8m Product materials: B7, B16, 304, 316, 304L, 316L, etc Mechanical properties :8.8-12.9 Metric specification :M8-M56 US specification :3/8 -- 2" Temperature resistance :-63鈩?-- +500鈩?Pressure resistance :鈮?20Mpa Accuracy level :6 h FAQ: Q: Can we get some samples? Any charges? A:Yes, free existing labels, you need to pay shipping cost. Q: . How can we get a quote? A:Contact us with specification: such as material, design, size, shape, color, quantity, surface finishing, etc. Q: Where we can get products information from? A: Also you can contact our international marketing team. Q: How about Biyi鈥檚 after-sale policy and term? A: Wenzhou Biyi Promise 1 year guarantee for regular items as usual.Fasteners suppliers website:http://www.biyivalve.com/fasteners/