NINGBO PENTA GROUP CO.,LTD is a combination of production and trade, industry and trade integration corporation. NINGBO PENTA GROUP includes Ningbo Xinya Machinery Factory,which is located in NingBo, the largest port city in China.

Ningbo Xinya Machinery Factory is a professional stainless steel and super alloy fasteners manufacturer. Our product includes all kinds of screws,fixings,washers, nuts, bolts, pins, threaded rods, machining parts, flanges, and so on.

Our raw material includes normal stainless steel, such as SS303, SS304, SS316 /316L, SS309S, SS317L, SS321, SS347, SS347H, SS310S, and 1.4529, 904L, 254SMo, Alloy 286, 2.4952(Nimonic 80A), and Duplex steel series of 2205(F51/S31803/S32205), 2507(F53/S32750), Hastelloy B3 /C4 /C22 /C276 /C2000 / G3 /G30/X, Inconel600/601/617/625/690/718/725/X750, Incoloy 800/800H/800HT/825/901/925/926, Monel 400 /K500.

The surface treatments are available for 4 types.such as: Phosphating Blackening,Zinc Plated,HDG(hot dip galvanized),Dacromet Coating etc. The mechanical performance class/grade of carbon steel are 4.8(4.6, 5.8), 8.8, 10.9, 12.9 according to DIN standard, and GR2, GR5, GR8, B7 according to ANSI standard; Stainless steel 201, 304, 316,Which are applied to connectors of shield tunnel segment (concrete), wind-power screws series, nuclear-power assembling fasteners, steel structure bolts series and other non-standard components for solar power, etc, both of which enjoy great popularity among customers domestic and foreign customers.

What's more, we have not standard fasteners but a number of non-standards items, including CNC parts and stamping parts products. (Detailed product information you can browse our website) Our range is complemented with a large choice of fixing technology from high reputable manufacturers. We have a strong design team and a well-established supply chain, and can manufacture all kinds of hardware according to your requirements. Available sizes from M3 to M150. Length from 1 millimeter to 6meter. Our delivery will be shorter than 95% suppliers in China. Our products are popular with most customers in America, Japan and Europe etc. market.

 We are reliable supplier of fasteners with 1 years warranty. We are looking forward to get more cooperation.