Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating

Product Details
Customization: Available
Material: Stainless Steel
Type: Hexagon Head
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  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
  • Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating
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Basic Info.

Head Style
Hexagonal
Standard
DIN, ANSI, JIS, BSW
Application
Machinery, Chemical Industry, Environmental, Building
Finish
PTFE
Customization
According to Drawing or Samples
Deliver Time
15 Day
Coating
Plain,PTFE Blue,PTFE Green
Certificated
ISO9001-2015, ISO45001-2018,ISO14001-2015
Market
Global
Transport Package
Box,
Specification
m6-m80
Trademark
DB
Origin
China
HS Code
731819
Production Capacity
5000ton/Year

Packaging & Delivery

Package Size
10.00cm * 10.00cm * 10.00cm
Package Gross Weight
1.000kg

Product Description

Studs 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.

Used in high pressure bolting situations for pipeline, drilling, petroleum / petrochemical refining and general industry for sealing and flange connections all thread, tap end and double end stud bolts are the lion's share of the industry. The all thread stud bolt is a threaded rod with 2 heavy hex nuts, while the tap end and double end are nut continuously thread, but have a body in the middle with one nut. In a tap end the short end of the stud bolt is designed with a UNC 3A fit to go into a tapped hole on the body of a larger machined or forged equipment.

In a flanged connection the size, length, diameter and number of bolt holes is dependent of flange type and pressure class of flange.
Stud Bolt grades and sizes are defined by industry standards in ASTM A193 and ASME B16.5 standards.

Standard U.S. bolt threads are defined in ASME / ANSI Unified Inch Screw Threads. The most commonly used Unified threads are UN, UNC, UNF in thread pitches associated to the diameter. The thread diameter/pitch combinations are measured by the number of threads per inch (TPI) accompanying each diameter.

At Sigma we manufacture studs in a wide variety of ASTM grades and exotic grade high strength alloys. Our Booking for Energy Book section on stud bolts includes many finer details on stud bolts. Like how the ends are finished.

Stud Bolt Ends

At manufacturer's option, ends or points may be rounded (oval), sheared, flat or saw cut and chamfered. When rounded, the stud shall have an oval point with a radius equal to approximately one times the basic stud diameter. When flat and chamfered, the end shall be chamfered from a diameter not exceeding the minor diameter of the thread to produce a length of chamfer or incomplete thread approximately equivalent to 2 times the thread pitch.

Length

Stud bolt length is commonly measured end to end or first to first. The length of stud bolt, measured parallel to the axis, is the distance from first thread to first thread.
First thread is defined as the intersection of the major diameter of the thread with the base of the point.  Stud bolts are normally available in 1/4 in. length increments.

Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating

Size D UNC UNF 8UN Min. Max. Min. Max. Min. Max.
1 4 0.2500 20 28 . . . 0.050 0.100 0.036 0.071 . . . . . .
5 16 0.3125 18 24 . . . 0.056 0.111 0.042 0.083 . . . . . .
3 8 0.3750 16 24 . . . 0.063 0.125 0.042 0.083 . . . . . .
7 16 0.4375 14 20 . . . 0.072 0.143 0.050 0.100 . . . . . .
1 2 0.5000 13 20 . . . 0.077 0.154 0.050 0.100 . . . . . .
9
16 [Note (3)]
0.5625 12 18 . . . 0.084 0.167 0.056 0.111 . . . . . .
5 8 0.6250 11 18 . . . 0.091 0.182 0.056 0.111 . . . . . .
3 4 0.7500 10 16 . . . 0.100 0.200 0.063 0.125 . . . . . .
7 8 0.8750 9 14 . . . 0.111 0.222 0.072 0.143 . . . . . .
1 1.0000 8 12 . . . 0.125 0.250 0.084 0.167 . . . . . .
118 1.1250 7 12 8 0.143 0.286 0.084 0.167 0.125 0.250
114 1.2500 7 12 8 0.143 0.286 0.084 0.167 0.125 0.250
138 1.3750 6 12 8 0.167 0.333 0.084 0.167 0.125 0.250
112 1.5000 6 12 8 0.167 0.333 0.084 0.167 0.125 0.250
158 1.6250 . . . . . . 8 . . . . . . . . . . . . 0.125 0.250
134 1.7500 5 . . . 8 0.200 0.400 . . . . . . 0.125 0.250
178 1.8750 . . . . . . 8 . . . . . . . . . . . . 0.125 0.250
2 2.0000 412 . . . 8 0.222 0.444 . . . . . . 0.125 0.250
214 2.2500 412 . . . 8 0.222 0.444 . . . . . . 0.125 0.250
212 2.5000 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
234 2.7500 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
3 3.0000 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
314 3.2500 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
312 3.5000 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
334 3.7500 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250
4 4.0000 4 . . . 8 0.250 0.500 . . . . . . 0.125 0.250

 

Premium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe CoatingPremium ASTM A320 Stainless Steel Stud Bolts with Ftfe Coating

 

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