What is a Mushroom Head Square Bolt?
A Mushroom Head Square Neck Bolt, also known as a Coach Bolt, Cup Square or Carriage Bolt, has a square shoulder under a rounded head which resists turning when the nut is tightened or removed. Carriage bolts are pushed into a hole the same size as the shank and then hammered in the rest of the way, where the square shoulder locks it firmly in place. A bolt is an externally threaded fastener designed for insertion through holes in assembled parts, and is normally intended to be tightened or released by torquing a nut. A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head.
Inspection & Testing of Mushroom Head Square Bolts
- Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test.
Metline is a professional manufacturers, suppliers and exporters of mushroom head square bolts in India. We produce and forge mushroom head square bolts to specifications of ASTM A182, ASTM A193, ASTM A194, ASTM A320, ASTM L7/L7A etc. We ensure that the clients get the best product at the cheapest cost from us. We make sure that the order is delivered at the right time in the right place. We have built trust over the years for our best quality services and always look forward to build ling term business relationship with our clients. We are committed to quality and service.
Materials (All Grades)
Stainless Steel: Grade: ASTM 182 , ASTM 193, ASTM 194, B8 (304), B8C (SS347), B8M (SS316), B8T (SS321), A2, A4, 304 / 304L / 304H, 310, 310S, 316 / 316L / 316H / 316 Ti, 317 / 317L, 321 / 321H, A193 B8T 347 / 347 H, 431, 410
Carbon Steel: Grade: ASTM 193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
Alloy Steel: Grade: ASTM 320 L7, L7A, L7B, L7C, L70, L71, L72, L73
Brass: Grade: C270000
Naval Brass: Grade: C46200, C46400
Copper: Grade: 110
Duplex & Super Duplex: Grade: S31803, S32205
Aluminium: Grade: C61300, C61400, C63000, C64200
Hastelloy: Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Incoloy: Grade: Incoloy 800, Inconel 800H, 800HT
Inconel: Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Monel: Grade: Monel 400, Monel K500, Monel R-405
High Tensile Bolt: Grade: 9.8, 12.9, 10.9, 19.9.3
CUPRO-Nickel: Grade: 710, 715
Nickel Alloy: Grade: UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625),UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)
Metline Industries is one of the prominent supplier, manufacturer and exporter of mushroom head square bolts in India. Our manufacturing process for mushroom head square bolts includes an adequate heat treatment and the examination of chemical and mechanical properties. It is distinguished from other bolts by its shallow mushroom head and that the shank cross-section of the bolt is circular for most of its length, as usual, but the portion immediately beneath the head is formed into a square section. We supply the material to all big and small parties at any time they need. We have CNC machines as well as conventional lathe machines for machining and processing various types of mushroom head square bolts.
Production Supply & Manufacturing Range for Mushroom Head Square Bolts
|Standard:||ASTM A182, ASTM A193, ASTM A194, ASTM A320 L7/L7A|
|Certificate:||EN 10204 3.1|
|Size||1/2″ to 36″|
|Surface Treatment:||Anti-Rust Oil, Painting ( Black, Yellow), Galvanizing, Power Coating|
|Testing Material :||Mechanical Testing Such as Tensile of Area, Hardness Test, Positive Material Identification – PMI Testing, Flattening Test, Micro and Macro Test, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test|
|Package||Plywood Pallet, Wooden Pallet, Wooden Case etc.|
|Usage:||Used for the Construction, Shipbuilding, Refineries, Hydraulic & Pneumatic System, Furniture Industries, Pulp and Paper, Parmaceutical Processing etc.|
|Services||Flexible payment term|
|Best after sales service|
|Samples can be provided|
|Quick Just in Time Deliveries|
|Specification can be customized as per request|