Infly Fasteners Inc is a professional factory and manufacturers of Carriage bolts, Hex flange bolt (phillips, cutting point, teethed), supply to mushroom head square neck bolt, Us Carriage bolts, round head square neck screw and Roofing bolts, Anchor bolt, Hook bolts, Machine threaded and wood threaded stud bolt, U-bolt, J-bolt, L-bolt, we can customized to non-standard fasteners, such as short, low square neck mushroom head, round head, pan head carriage bolt, strictly according to DIN603 and ANSI B18.5 standard to produce.

Infly Fasteners Factory have more than 10 years in the manufacturing and processing of fasteners and bolts, at present there are 6 Heading machine, 4 threading machine and other ancillary equipment such as Punch machine, Lathe machine, Bench drill and so on, plant area of about 800 square meters, main products for the carriage bolt and the roofing screws, etc. Our factory is located in the China Fastener Base_Haiyan, and located in the center of the large urban agglomeration of the Yangtze River, from Hangzhou Bay Bridge is only 3 km, and the city traffic is convenient, 90 km from Shanghai, 80 km from Hangzhou, 100 km from Suzhou, 120 km from Ningbo, we have professional technical staff, skilled the technical worker, experienced product development department, quality at first, honesty at first principle, sincerely welcome the old and new friends and customers to our factory to negotiate business.

1. About our products:
1.1. Carriage bolts: is divided into DIN and US carriage bolt, and non-standard, there are the standard DIN603, DIN608, ANSI B18.5, GB12, GB14 AMST A307... non-standard have round head, mushroom head, and short, low, high square neck carriage bolt, Infly Fasteners mainly produce class4.8-8.8, Gr.2- Gr.5 in inch carriage bolt.

1.2. Machine bolt: also known as pan head, mushroom head slot machine screws, and hex socket round head screw, phillips pan head bolts, roofing screw, the standard are ISO7380, NFE25129, is a round head and pan head machine screws, the available size are dia.M6-M12(1/4"-1/2"), length 20-120mm, of course, Infly Fasteners also produce other machine screws in this size.

1.3. Hex Flange bolts: also called the hexagon head with flange machine screw, and phillips hex flange bolt with cutting point, the standard is DIN6921 with teeth, according to the usage habits, also be required for concave brain type in bolt's head, or the flange face with anti-skid teeth, and cutting poin at the end of threaded, Infly Fasteners mainly produces Class 4.8-8.8 and Gr.2-5 in inch hex flange bolt.

1.4. U-bolts: is a clamp or blocking the bolt to use with hex nut or rectangle washers together, the generally not fixed in accordance with the standard production, mainly according to customer requirements (such as drawings, samples, detailed description of size) to order, of course, in addition to U-bolt, Infly Fasteners factory also produces L bolts, J bolts and anchor bolts.
1.5. Stud bolts: we only do the one end of machine threaded and one end of wood threaded stud screw, it Mainly used for carpentry and construction industries, because there is no specific reference standard, so sometimes asked with the middle with hexagonal, or the end of machine threaded with Torx in head bolt. the available size is M6-M12 in Infly Fasteners.
1.6. Square Nuts: mainly for DIN557, some size in stock, such as carbon steel Class 4, the size in M10, M12, M16, M20 and 3/8", 1/2", 5/8", 3/4"in inch square nut, surface by the customer whether galvanized or hot dip galvanizing.
1.7. Non-standard bolt: is according to customer requirements and not in the standard range of bolts, you will be requested to supply the Drawiing or Samples.

Infly Fasteners Factory - A Manufacturers of Carriage bolt.

Contact name: Mr.Lufel Lee
Address: No.333 Xinqiao Road, Haiyan 314300, Jiaxing City, Zhejiang, China.
QQ: 929850133
Skype: boltschina