Stud Bolt

Stud Bolt or Studs,sometimes called Full thread rods are externally threaded fasteners that typically look like and operate as threaded bars. They’re different from screws and bolts in the fact that they don’t usually have a head that requires tightening — just continuous threading that can be paired with nuts

Stud bolts are the bolting material or fastener used to tighten the flange joint connection according to ASME B16.5 Code

Stud Bolt Standards

ANSI/ASME B18.31.2

ANSI/ASME B16.5

DIN 975

Bolt  Materials：

Carbon Steel Stainless Steel Duplex & Super Duplex
• ASTM A193 B7 • ASTM A193 B8 CL1/CL2 • ASTM A182 F51, S31803
• ASTM A193 B7M • ASTM A193 B8M CL1/CL2 • ASTM A182 F53, S32750
• ASTM A193 B16 • ASTM A193 B8C CL1/CL2 • ASTM A182 F55, S32760
• ASTM A320 L7 • ASTM A193 B8T CL1/CL2
• ASTM A320 L7M • ASTM A320 B8 CL1/CL2
• ASTM A320 L43 • ASTM A320 B8M CL1/CL2
• ASTM A325 • ASTM A320 B8C CL1/CL2
• ASTM A320 B8T CL1/CL2
• ASTM A453 660
• ASTM A453 662A
• ASTM A453 665B

Thread

Nominal size or diameter 1″ and smaller 1 1/8″ and larger
INCH SERIES UNIFIED COARSE THREAD SERIES UNIFIED 8 THREAD SERIES
CLASS 2A ASME B1.1 CLASS 2A ASME B1.1
Nominal size or diameter 1″ and smaller 1 1/8″ and larger
METRIC SERIES METRIC COARSE THREAD SERIES METRIC FINE AND COARSE PITCH THREADS
CLASS 6g ISO 68/ IS0 965 CLASS 6g ISO 68/ ISO 965

Fastener Surface coatings
Blacken

zinc coated, hot dipped galvanized, cadmium coated,

PTFE coated, Zinc Plating +PTFE coating,TEFLON coated, XYLAN coated,
Colors: blue, green, red, silver, black, grey and zinc, etc.

Xylan 1424 coating material for stud bolt

Xylan 1424 Coating/fluoropolymer Coating for fasteners

Stud Bolt, Technicals / ,

XYLAN® 1424 is a line of waterborne, resin bonded high temperature resistant dry films, formulated to deliver a wide range of performance characteristics when used in multiple industrial applications. It Offers controlled low friction with excellent corrosion and chemical resistance, they are usable as a stand-alone solution or as part of an overall coating system. 

It is a proven coating material for stud bolt,fasteners

Xylan 1424 Coating/fluoropolymer Coating for fasteners Read More »

Xylan 1070 Coating a Fluoropolymer Coating

Xylan 1070 Coating/a Fluoropolymer Coating

Stud Bolt, Technicals / ,

Xylan 1070 is a fluoropolymer-based industrial coating, it is applied in a thin film to the target material to improve its durability and non-stick properties.

You can find the TDS (Technical data sheet )of Xylan 1070 coating as below.Xylan 1070 can be applied as the top coating with Zinc plating or Zinc nickel plating as primer coating.(base coating) for stud bolt

Xylan 1070 Coating/a Fluoropolymer Coating Read More »

Is-Fluoropolymer-Coating-the-same-as-PTFE-Coating

Is Fluoropolymer Coating the same as PTFE?

Stud Bolt, Technicals /

,A fluoropolymer is a fluorocarbon-based polymer with multiple carbon–fluorine bonds. It is characterized by a high resistance to solvents, acids, and bases. The best known fluoropolymer is polytetrafluoroethylene under the brand name “Teflon,
So from the above information.We can easily understand that PTFE (Teflon) is one of the best known Fluoropolymer.In the actual production process,When the fastener required with Fluoropolymer coating,we will apply PTFE coating.
Fluoropolymer and PTFE coating are the same thing.

Is Fluoropolymer Coating the same as PTFE? Read More »

ASTM-A193-B7M-Stud-Bolts-A194-2HM-Hex-nuts

ASTM A193 B7M STUD BOLT C/W 2 A194 2HM HEAVY HEX NUTS

Stud Bolt /

Stud Bolt grade B7M, being under the A193 standards, the Specification for Alloy Steel and Stainless Steel Bolting for High Temperature or High Pressure Service.It can be used in specific applications within the oil and gas industries where the bolting could be exposed to the environments containing H2S. NACE MR 0175 compliance

Stud Bolt: ASTM A193 B7M, ¾”-10 UNC x 6”
Nuts: ASTM A194 2HM
Washer: ASTM F436
Surface:HDG or PTFE Xylan 1070 coated

ASTM A193 B7M STUD BOLT C/W 2 A194 2HM HEAVY HEX NUTS Read More »

ASTM A320 L7M STUD BOLT A194 7M HEAVY HEX NUTS

ASTM A320 L7M STUD BOLT C/W 2 A194 7M HEAVY HEX NUTS

Stud Bolt /

ASTM A320 L7M is manufactured from AISI 4140 round bar and is supplied in a quenched and tempered condition.The maximum hardness of Grade L7M shall be 235 HBW or 99 HRB (conversion in accordance with Table Number 2B of Test Methods and Definitions A370). Minimum hardness shall not be less than 200 HBW or 93 HRB. Conformance to this hardness shall be ensured by testing each bolt or stud by Brinell or Rockwell B methods in accordance with 6.3.1

ASTM A320 L7M STUD BOLT C/W 2 A194 7M HEAVY HEX NUTS Read More »