Double-End Studs

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Studs with threaded ends and a plain centre section.

Metric thread diameter: M1.2–M100
Inch thread diameter: #2–6 in

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Thread pitch: Coarse or fine
Length: Up to 12 in (304.8 mm)

Thread systems: Metric / inch

Inconel 718 double-end studs

For an Inconel 718 / UNS N07718 enquiry, provide overall length, each threaded-end length, plain-body length and the thread designation for each end. State the required material condition and the governing finished-part specification. AMS 5662/5663 and ASTM B637 describe material scopes and conditions; a material certificate alone does not define finished-stud acceptance. We review the drawing, process and inspection requirements before confirming the quotation.

Request an Inconel 718 stud review

A-286 / Grade 660 double-end studs

For an A-286 / UNS S66286 enquiry, provide overall length, each threaded-end length, plain-body length and the thread designation for each end. If ASTM A453/A453M Grade 660 governs the order, specify the approved class and edition. Identify the mating nut or tapped-hole requirements separately. Send the known requirements even if some details need clarification; the final scope is confirmed in the quotation.

Request an A-286 stud review

Double-End StudsRequest a quote ↗

Standards & specifications

Dimensional standards / referencesASME B18.31.2 for applicable inch forms; metric forms to drawing

Preview your dimensions

Enter the dimensions you know to update the model. Blank fields use illustrative proportions and are excluded from your enquiry. You can send a drawing without filling these fields.

Illustrative shape with simplified threads, recesses and edges. No tolerance, fit, load or standard compliance is simulated.

Length unitsThread series

d · Nominal thread diametermmMeasure across the thread crests to help identify the size. Also provide the thread designation and pitch P, for example M10 × 1.5.L · Nominal length excluding insertion endmmFor this reference, L excludes insertion end bₘ. Overall length is L + bₘ. Check the actual drawing.P · Thread pitchmmDistance between adjacent threads in the selected length unit. For inch threads, enter 1 / TPI.bₘ · Insertion end lengthmmMeasure the distance between the two indicated end faces.b · Nut-end threaded lengthmmMeasure the distance between the two indicated end faces.

Measurement notes

Illustrative geometry with simplified thread and drive details; confirm the actual drawing before manufacture.

Here L excludes insertion end bₘ. Overall length is L + bₘ.

Quality documents

Material certificate

MTC · EN 10204 3.1 included

310 fastener MTC · PDF ↗310S bar MTC · PDF ↗

Heat number traceability

Every delivery traceable by heat number

Mechanical testing

Included with every delivery

Thread inspection

GO / NO-GO gauging · sampled inspection

Product-specific review: thread designation and threaded length at each end, plain-body length and length datum.

Methods, sampling and acceptance criteria follow the agreed specification. PMI, third-party inspection and additional records are agreed separately.

Before production and at delivery

During quotation, a redacted certificate from a previous order can show the document format and recorded tests. It is a historical example, not certification of this product or a new order. Shipment documents must correspond to the material and batch actually supplied.

How to read a historical certificate sample ↗

Prepare your enquiry

Send a drawing and quantity.
No drawing? Use these details.

Size: Diameter × length
Quantity: Pieces
Material: Grade / UNS
Requirements: Drawing / standard

Start with a drawing, specification or written requirement; a drawing is not needed for an initial enquiry. For this product, include thread designation and threaded length at each end, plain-body length and length datum along with the alloy grade, condition and quantity. BYBOLT clarifies open requirements with you before confirming the quotation and arranging production. Any change to an agreed material or specification requires your approval.

Order checklist

End identification, complete thread designations and all controlling lengths.

Material grade, specification, condition and surface requirement.

Quantity, mating components, inspection scope, documents and target date.

Commercial terms

Indicative terms; confirmed in your quotation.

Typical MOQ

10pieces

Subject to product and material review.

Conditions

MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.

Sample review

~20days

Freight, import duties and taxes are separate.

Conditions

Samples are typically reviewed on an approximately 20-day basis. BYBOLT may cover agreed sample manufacturing; buyer freight, import duties and taxes remain separate.

Production review

25–35days

Urgent requirements can be discussed.

Conditions

Regular production is commonly reviewed on a 25–35 day basis. Urgent requirements can be discussed against the complete specification.

Typical deposit

30%

T/T or LianLian. Balance before dispatch.

Conditions

Payment can be arranged by T/T or LianLian. A typical order uses a 30% deposit, with the balance completed before dispatch.

Technical help

Structure and product identity

A double-end stud has two defined threaded ends separated by an unthreaded body. A tap-end configuration may assign different functions or thread details to the two ends. The controlled drawing or agreed product definition determines the orientation and acceptance requirements. Identify the nut end and tap end where they are not interchangeable. State whether both ends use the same thread designation. Define end preparation, markings and supplied mating components separately.

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