Typical MOQ
10pieces
Subject to product and material review.
Conditions
MOQ is typically 10 pieces, subject to product, material and manufacturing-route review.
Hex Nuts
MaterialChoose a materialChange
Hexagonal nuts with internal threads for specified bolts or studs.
- Metric thread diameter
- M1.2–M250
- Inch thread diameter
- #00–4 in
- Thread pitch
- Coarse or fine
- Thread systems
- Metric / inch
Standards & threads
Dimensions · metricISO 4032Regular hex nut · style 1 · coarse pitch
Nut height, width across flats/corners, chamfers and dimensional tolerances. ISO 4032:2023 covers steel and stainless steel; for nickel and other nonferrous alloys, specify its geometry on the drawing with separate material and nut requirements. Fine-pitch geometry must be specified separately.
Dimensions · inchASME B18.2.2Hex nut geometry · inch series
Select the regular hex-nut pattern and nominal size. Controls height, across flats/corners, chamfers and bearing-face geometry. Heavy-hex and other nut patterns have separate tables.
Threads · metricISO 261 / ISO 965-1Metric pitch series & internal-thread tolerances
Specify nominal diameter, pitch and internal-thread tolerance class, for example M12 × 1.75–6H. Fine pitch must be stated explicitly.
Threads · UNC / UNFASME B1.1Unified inch · internal thread
Specify diameter, TPI, series and internal-thread class, for example 1/2-13 UNC-2B. Match the mating bolt or stud; UNC and UNF are different pitches.
Preview your dimensions
Example dimensions, not a stock size.
Simplified right-hand internal thread. No tolerance, fit or standard compliance is simulated.
Unedited m and s use illustrative proportions (m ≈ 0.83d, s = 1.5d), not standard-table values. Change them if specified on your drawing.
Quality documents
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: internal thread, nut height, width across flats and mating bolt or stud.
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.
- Thread size
- d × P / TPI Nominal diameter and pitch
- Quantity
- Pieces Required quantity per size
- Thread
- Metric / UNC / UNF Pitch / TPI + internal class
- Nut dimensions
- m · s Height · across flats, if specified
Start with a drawing, specification or written requirement; a drawing is not needed for an initial enquiry. For this product, include internal thread, nut height, width across flats and mating bolt or stud 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.
Full material checklist
Material
Alloy name and UNS designation.
Nut specification
Finished-nut standard, grade and condition from your drawing.
Geometry
Regular hex nut · metric or inch standard; custom m and s if specified.
Threads & finish
Diameter, pitch / TPI, internal-thread class and any coating.
Additional documents
Any extra inspection or test reports required by your order.
Commercial terms
Indicative terms; confirmed in your quotation.
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
What should I send for a nut quotation?
Send a drawing and quantity, or the thread size, material and nut standard. Add height and across flats only when your drawing specifies them.
Can these nuts be matched to bolts or studs?
Send the mating part’s thread designation and grade. We review thread compatibility and nut strength together; matching diameter alone is not enough.
What inspection is included?
Every delivery includes an EN 10204 3.1 MTC, heat-number traceability and mechanical testing. Thread inspection includes sampled GO / NO-GO gauging. Include any additional test or reporting requirements in your enquiry.
Read a nut thread designation Metric / UNC / UNF
M12 × 1.75–6H12 mm nominal diameter · 1.75 mm pitch · internal class 6H
1/2-13 UNC-2B1/2 inch · 13 TPI · coarse · internal class 2B
1/2-20 UNF-2B1/2 inch · 20 TPI · fine · internal class 2B
Related material guides
Specify your nut
Send a drawing or add your dimensions and quantity.
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Hex NutsRequest a quote ↗