THREADED
PRODUCTS

STUDS & BOLTS

Dan-Loc is an ISO 9001 Registered manufacturer that utilizes cut and roll threading, and bar feed lathes, to produce special reliefs, profiles and single point threads up to six inches in diameter.

  • Fully Threaded Studs
  • Combination Studs
  • Dan-Loc Studs
  • Double End Studs

INDUSTRIAL NUTS

Dan-Loc maintains a large inventory of nuts including Grade 2H, Grade 2HM and Grade 8, up to 3″ in diameter. All nuts can have specialized coatings and platings for durability and ease of application.

  • Alloy Nuts
  • Spherical Face Nuts
  • Nuts with Tommy Bar Holes
  • Cap Nuts
  • Specialized Nuts

MACHINED FASTENERS

Dan-Loc has in-house capability to manufactur and modify special fasteners from all material grades. This includes unique profils and tight tolerance faces on large fasteners used in oilfield applications such as stay rods and mud pump studs.

Studs & bolts

Dan-Loc manufacturers a full line of standard and custom studs and bolts, also referred to as threaded rods, including all thread studs, combination studs, double end studs and tap end studs.

We have expertise in manufacturing modified stud bolts and custom bolts made to our customer’s exacting specifications.

Dan-Loc is your single source for threaded rod and stud needs.

Fully threaded studs, also known as continuous threaded studs or all thread studs, are designed for use in applications that entail high tension. All thread studs are ideal in high tension operations because the threaded design prevents slip and ensures the tightest possible fit. Available in a wide variety of materials, continuous threaded studs can be used in both industrial and commercial applications. Dan-Loc Group fully threaded studs are available with both right hand and left hand thread directions to comply with any application.

 

  • Diameter size range: 1/2” – 4” in diameter (Smaller diameters available upon customer request).
  • Threads are to a Class 2A fit.
  • Note: Threads shall be Unified National Coarse series for 1″ diameter and smaller and 8 thread series for 1-1/8″ diameter and larger.
  • Length – ASME B16.5 “Steel Pipe Flanges and Flanged Fittings” specifies bolt lengths from first thread to first thread and the end points must be added to obtain overall end to end length (L).
  • Tolerance – Tolerance on bolt stud lengths for lengths 12″ and under shall be ±1/16″; for lengths 12″ to 18″, ±1/8″; and for lengths over 18″, ±1/4″.
  • When ordering, please specify:
    • Diameter (D)
    • Length (L) – End-to-end (If first thread to first thread is required, order must specify).

Combination studs have threaded sections that differ from one end to the other. One end of the stud may have a different thread class than the other or have different diameter than the other.

 

  • Diameter size range: 1/2” – 3 1/2” in diameter.
  • Threads – Threads shall be Unified National Class 2A fit, 8 thread series, or as specified by customer.
  • When ordering, please specify:
    • Diameter (D) and (D1)
    • Length (L) – End-to-end dimension (If first thread to first thread is required, order must specify) Thread length (T) and (T1) thread series
  • Prints should be furnished on Combination Studs whenever possible.

The Dan-Loc Stud is a tap end stud with a proprietary design that controls the thread depth. This ensures that multiple Dan-Loc Studs threaded into a flange will protrude from the flange face at the exact same length.

 

  • Diameter size range: 1/2” – 4” diameter (Smaller diameters available upon  request).
  • Threads: Dan-Loc threads American Class 2A fit for National Coarse Series and for 8 Thread Series Thread Depth is controlled by patented Dan-Loc design.
  • Positive thread locking feature.
  • Fatigue tested, stronger than conventional stud bolt.
  • When ordering, please specify:
    • Diameter (D)
    • Length overall (L) – End-to-end (If first thread to first thread is required, order must so specify)

Dan-Loc is a leading manufacturer and distributor of double end studs which are threads of equal length and diameter on both ends. Double end studs are used for flange bolting with a nut at both ends. We offer double ended studs in a variety of materials including stainless steel and exotic alloy materials.

 

  • Diameter size range: 1/2” – 3 1/2” in diameter.
  • Threads – Threads shall be Unified National Class 2A tolerance for UNC, UNF or 8 thread series.
  • When ordering, please specify:
    • Diameter (D)
    • Length (L) – End-to-end dimension (If first thread to first thread is required, order must specify)
    • Thread length (T) and thread series
  • Prints should be furnished on Double End Studs whenever possible.

Tap end studs have have a different thread length at each end of the stud. The shorter thread length is called the tap end and is threaded into the tapped hole of a flange. The longer thread length is called the nut end.

Dan-Loc can produce tap end studs with custom radius and relief specifications as well as close tolerances and special thread forms and classes.

 

  • Diameter size range: 1/2” – 3 1/2” in diameter.
  • Threads – Threads shall be Unified National Class 2A fit, 8 thread series, or as specified by customer.
  • When ordering, please specify:
    • Diameter (D) and (D1)
    • Length (L) – End-to-end dimension (If first thread to first thread is required, order must specify)
    • Thread length (T) and (T1) thread series
  • Prints should be furnished on Tap End Studs whenever possible.

    Dan-Loc offers quick turnaround solutions to your custom bolt requirements. Whether you need bolts in exotic materials, large diameters, non-standard lengths, or other custom designs, we can supply them on time. We are a manufacturer with in-house heat-treating to ensure quality and we constantly test to meet ASTM specifications. We also keep extensive, completely traceable data to document that your bolts are on spec and proven quality. Tell us what you need and we’ll get your order going. Dan-Loc products are on most customer Approved Manufactures Lists (AMLs).

    B7M and L7M Stud Bolts

    Dan-Loc is the largest manufacturer of B7M and L7M modified stud bolts in the US. Our goal is always consistent quality. Our continuous feed furnace allows Dan-Loc to product bolts within tighter tolerances than required by ASTM.

    Modified Stud Bolts

    Where hydrogen embrittlement is a concern, out modified stud bolts are stocked in a range of sizes or can be manufactured to your needs.

    • Modifying stud bolts prevents against hydrogen embrittlement that causes dangerous cracks and failures.
    • All Modified B7M and L7M stud bolts are 100% hardness tested per ASTM A193 and A320 specifications.
    • All modified nuts are Rockwell harness tested.
    • L7M studs are Charpy tested to ASTM 320 specifications.

    STUD & BOLT DATA SHEETS

    Industrial Nuts

    Dan-Loc maintains large inventories of nuts including grades 2H and 2HM up to 3 inches in diameter. We also carry Grade 8 and alloy nuts, spherical face nuts, and nuts with tommy bar holes.

    Dan-Loc has in-house manufacturing capability for special nuts such as cap nuts.

    Contact Dan-Loc for more information or if you have a unique industrial nut requirement. Let’s explore how we can meet your needs.

    Special Machined Fasteners

    Dan-Loc has in-house capabilities to manufacture and modify special fasteners from all material grades.

    This capability includes profiles and tight tolerance faces on large fasteners used in oilfield applications such as stay rods and mud pump studs.

    Let Dan-Loc create and deliver the special machined fasteners you need, quickly and cost effectively.

    Coatings & Platings

    A wide range of coatings options designed to inhibit corrosion for harsh production environments.

    Dan-Loc TuffCor

    A Dan-Loc innovation that raises the standard for corrosion resistance for maximum product performance.

    Dan-Loc ZCor

    A high-performance alternative to cadmium plating that uses zinc as a sacrificial corrosion barrier.

    Metal Material Options

    Alloys, stainless steel and exotic metal options in FERRETIC and AUSTENITIC categories. Meets ASTM standards.

    Why You Want Dan-Loc On Your Team

    Dan-Loc is your trusted stud, rod, bolt, nut, fastener and gasket supply partner. We stock for your day-to-day needs, and are able to scale to projects of any size or manufacturing equipment customer need.

    OUR INDUSTRY-LEADING
    FASTRAC SOLUTIONS

    FASTRAC Solutions harnesses the power of trusted, high-performance products, services and relationships to drive new levels of cost effectiveness, response and customer benefit.

    FASTRAC Products are high-performance studs, bolts, threaded products, and gaskets. We’ve been doing this since 1961.

    FASTRAC Services represent a full range of support services that ensure you have exactly what you need, when you need it.

    Let's Connect!

    Please tell us how we can help you as well as the best way to contact you.

    A Dan-Loc representative will respond as soon as possible. Thank you!

    Dan-Loc Locations

    Dan-Loc wants you to have the information you need and answer any questions you have. Please fill out the contact form, email us, or give us a call on the number below.

    HEADQUARTERS, MANUFACTURING & REGIONAL SERVICE CENTER

    725 North Drennan Street, Houston, TX 77003
    Click to call: (800) 231-6355
    Click to call: (713) 356-3500

    LOUISIANA DAN-LOC EXPRESS LOCATION

    2808 South Ruby Avenue, Suite 110, Gonzales, LA 70737
    Click to call: (255) 644-6449

    OHIO DAN-LOC EXPRESS LOCATION

    294 Fox Drive, Piqua, OH 45356
    Click to call: (937) 778-0485