Mil-spec fasteners, machined to order.
MS, NAS and AN bolts and screws machined from certified bar in Houston. AS9100D, DFARS-compliant material, CAGE 8HH90. Prototype quantities through production, with no minimum.
Part numbers your drawing already calls out.
Cyclone machines military and aerospace standard fasteners from certified bar: hex head aircraft bolts, close-tolerance and shear bolts, drilled-head and drilled-shank screws, shoulder bolts and non-magnetic hardware, to the AN, MS, NASM, NAS and SAE AS sheets. Each family page below explains what the standard covers, how to read the part number, and what to include on the RFQ.
- Machined from certified bar to the standard; no hot heading
- AS9100D and ISO 9001:2015 quality system; CAGE 8HH90
- DFARS-compliant material available on request
- No minimum quantity; prototype through production
- Material test reports and certificates of conformance with the order
Send the complete part number with dash number and code letters, the quantity, the required delivery and the documentation your purchase order calls for.
Mil-spec fasteners at a glance
| Detail | Specification |
|---|---|
| Part families | AN, MS (including NASM and SAE AS reissues) and NAS bolts and screws |
| Materials | Alloy steel (4140, 4340, 8740), 304, 316, 321, 410 and 17-4 PH stainless, A286, nickel alloys, silicon bronze and brass, titanium |
| Sizes | #10 (0.190 in.) through 1-1/2 in.; #8 and larger diameters reviewed on request |
| Threads | UNC, UNF and UNJF, class 2A or 3A, as the standard requires |
| Quantities | No minimum. Prototype, repair and production quantities |
| Manufacturing | Machined from certified bar in Houston, Texas. Hot heading is not offered |
| Quality | AS9100D, AS9120B, ISO 9001:2015; CAGE 8HH90; DFARS-compliant material on request |
| Lead time | Quoted per order; machining from bar avoids tooling and heading schedules |
Find your part number.
Each page covers one family: what the standard specifies, the materials and threads it allows, the part number codes, and the current status of the sheet.
AN bolts
MS bolts and screws
NAS bolts
How Cyclone makes them
Bar stock certified to the material specification is cut, turned and threaded to the standard’s dimensions, with drilled heads or shanks and head markings as the part number requires. Plating and locking elements are applied through partner facilities to the standard.
Lead time
Quoted on each order. Because the parts are machined from bar rather than scheduled through a heading run, lead time is set by machining capacity and material availability. Ask for the current lead time with your RFQ.
Quality
Cyclone’s published certifications include AS9100D, AS9120B, ISO 9001:2015, API Spec Q1, API 20E and API 20F. See quality and certifications.
Documentation
Material test reports and certificates of conformance ship with the order. Additional inspection reports and documentation are quoted to the purchase order.
Questions before you quote
Do you hot head these parts?
No. Cyclone machines mil-spec fasteners from certified bar. That removes tooling charges and heading schedules from the lead time, and suits the short runs and odd sizes these parts are usually needed in.
Is there a minimum order?
No. Cyclone quotes prototype and repair quantities as readily as production runs.
Can you make a part whose MS sheet was cancelled?
Usually yes. Most cancelled MS sheets were reissued as NASM or SAE AS documents with the part numbers unchanged, and the family pages say which. Send the number on your drawing.
Which materials do you keep certified bar for?
Alloy steel, 300-series and 400-series stainless, 17-4 PH, A286, nickel alloys, bronze and brass, and titanium are on the Cyclone line card. Material is sourced to the specification on each order with test reports.
Do you supply DFARS-compliant material?
Yes, on request. This refers to material sourcing; state the DFARS clause on your purchase order.
What is the lead time?
It is quoted on each order. Because the parts are machined from bar, lead time depends on machining capacity and material availability rather than on tooling or a heading run.