• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Sigma Fasteners

Manufacture and Distribute Fasteners for Energy

Phone: (281) 214-8800
Fax: (281) 214-8801

  • Products
    • Custom Bolting
    • Coated Bolts
    • Stud Bolts
    • Products
    • Flange Bolt Chart
    • Worldwide
  • ZNnGard
  • Industries
  • Quality
    • Survey
  • Get Quote
  • Contact
    • Careers
  • About
    • Press Releases
    • Conflict Minerals Sourcing Policy
    • Privacy Policy
You are here: Home / Archives for 718 inconel bolts

718 inconel bolts

Double End Studs

By Sigma Fasteners on January 11, 2017

Duplex Stainless Double End Studs Bolts

 

Double End Studs – Double ended studs

Double End Studs Bolts
Double End Studs

At Sigma Fasteners we provide mission critical bolting products for the nations leading manufacturers of pressure control equipment for controlling pressures during drilling and oil production.

Double-end studs used by many of these manufacturers have equal-length threads on each end to accommodate a nut and are threaded to a Class 2A fit. Length of stud is measured overall. Both ends have chamfered points, but round points may be furnished on either or both ends at the manufacturer’s option, This style is furnished in the same four types listed for tap-end studs. Double-end studs are used for flange bolting or other applications where torching from both ends is necessary or desirable.

Most steel grades not heat treated or quenched and tempered can be furnished on special order for production quantities. Only the Type 2 continuous thread studs made to specification ASTM A193 grade B7 are stocked in a full range of sizes.

ASTM Material Selection Chart B7, B7M, L7, L7M, 660, 718 Inconel, MP35N

Flange Bolts

By Sigma Fasteners on November 13, 2016

Custom Flange Screw
Custom Flange bolt

These hexagonal headed or double hex headed bolts are recognizable by the oversized washer face on the bolt head which forms a distinct ridge. This built-in washer under the head of the bolt distributes the fastening force over a large area. A flange bolt is designed to provide the clamping power over a washer and bolt combination. Available in both Hex Head and 12 point double hex head selections. The 12 Point Flange Bolts and Screws are an alternative head design with more torqueing force than standard hex cap screws. The twelve point design permits greater torque to be applied to the screw.

There are many critical design features of a flange bolt or flange screw including the fillet on the underside of the head. The fillet is the transitional curve from the bearing to the body of the fastener. Bearing surface on the flange screw or flange bolt is also key to its design integrating the extra grip strength. In addition, wrenching height on a flange bolt or flange screw is critical dimension that is measured from the top of the head to the top of the flange.

Sizes are available from ½ – 2 inch in a variety of ASTM fastener grade alloys and available to custom manufacture per print specifications.
These can be coated or plated with a variety of finishes. Xylan, PTFE, SermaGard and zinc and bake.

12 Point Flange Screws
12 point Flange Bolts

Email us for a Quote:

    Your Name (required)

    Your Email (required)

    Phone Number (required)

    Company (required)

    Message

    Attach File: Allowed File types: .pdf .txt .tif .tiff .jpg .doc .docx .dwg .xls .xlsx
    Max 2MB

    Stud Bolts

    By Sigma Fasteners on May 25, 2016

    Stud bolts for Pressure-Temperature Piping
    Stud bolts for Pressure-Temperature Piping
    Stud Bolts are used in High Pressure & Temperature flanged fittings

    REFERENCE
    Stud bolts for high pressure & high temperature applications conform to the requirements of ANSI/ASME B16.5, Steel Pipe Flanges and Flanged Fittings.

    LENGTH-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. Please see the drawing above-this is confusing to most users!! Stud bolts are normally available from stock in 1/4 inch length increments. Length tolerances, all stud bolt sizes, shall be as tabulated below:

    Length, in. Length Tolerance, in.
    to 12                           +/-0.062

    over 12 to 18          +/-0.125

    over 18                      +/-0.250

    POINTS
    Points shall be flat and chamfered, or sheared at option of the manufacturer. When points are flat and chamfered, the diameter of the flat shall not exceed the minor diameter of the thread, and shall be not less than one or more than two complete threads as measured from the extreme end parallel to the axis.

    THREADS
    Threads shall be Unified inch coarse thread series (UNC), Class 2A, for all stud bolt sizes 1 in. and smaller, and Unified inch 8 thread series (8 UN), Class 2A, for all stud bolts larger than 1 in., in accordance with ANSI/ASME B1.1. Acceptability of screw threads shall be determined based on ANSI/ASME B1.3.

    MATERIAL
    Chemical and mechanical requirements shall be specified by the purchaser and shall be in accordance with applicable ASME, ASTM, and ANSI codes and specifications current at the time of ordering.

    ASTM Material Selection Chart – Stud bolas are available in ASTM A193 Grade B7, B7M, L7, L7M. As well as 660, 718 Inconel, Mp35N and other high nickel alloys and stainless steels.

    DESIGNATION
    It is recommended that stud bolts be designated in the following sequence: product name, nominal size, threads per inch, length, material, and protective finish, if required.

    Example: ANSI/ASME B16.5 stud bolt,
    5/8-11 x 3-1/2, ASTM A193, Grade B7, Zinc & Clear Chromate Plated

    Primary Sidebar

    Products and Services

    • Coated Bolts
    • Custom Bolts
    • Fasteners
    • Industrial Coating Service
    • Press Releases
    • Stainless Bolts
    • Standard Bolts
    • Stud Bolts
    • Trade Shows

    More

    • About
    • About
    • Careers
    • Contact
    • Flange Bolt Chart
    • Get Quote
    • Industries
    • Jobs
    • Privacy Policy
    • Products
      • Coated Bolts
      • Custom Bolting
      • Stud Bolts
      • Worldwide
    • Quality
      • Conflict Minerals Sourcing Policy
      • Survey
    • Sigma Fasteners

    Toll Free: (866) 378-3044
    Phone: (281) 214-8800
    Fax: (281) 214-8801

    • Products
    • ZNnGard
    • Industries
    • Quality
    • Get Quote
    • Contact
    • About

    Careers · Privacy Policy · Conflict Minerals

    © 2004–2025 · Sigma Fasteners, Inc

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
    Do not sell my personal information.
    Cookie SettingsAccept
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
    CookieDurationDescription
    cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
    cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
    cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
    cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
    cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
    viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
    Functional
    Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
    Performance
    Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
    Analytics
    Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
    Advertisement
    Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
    Others
    Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
    SAVE & ACCEPT