Hex Bolts & Screws
Full thread and part thread hexagon head bolts, cap screws, and machine screws.
M3 – M64 · DIN 931 / 933
Overview
Everything Else the Job Needs
A fabrication job rarely needs pipe alone. It needs the bolts that hold the flanges, the angles and channels that carry the structure, the circles cut for a dished end, and the plastic bushes that stop metal wearing on metal.
We supply all of these from one source, in matching grades and with the same mill test certification – so a single enquiry covers the whole requirement and one delivery arrives at site.
- Fasteners in CS, SS & alloy grades
- Sections cut to length
- Circles & rings to your diameter
- One supplier, one delivery
What's in This Range
- Fasteners
- Bolts, nuts, washers, studs, threaded rod, screws
- Sections
- Angles, channels, beams, tees, flats
- Circles
- Cut circles, forged rings, spacers, blanks
- Plastics
- Nylon (PA6), PTFE, polypropylene
- Materials
- Carbon, alloy, stainless, duplex, nickel alloys, brass
- Certification
- EN 10204 3.1 on request
Fasteners
Nuts, Bolts, Washers & Studs
From flange bolting in B7 and B8M to general hardware in stainless and high-tensile steel.
Hex Nuts
Standard, heavy hex, thin, nyloc, dome and lock nuts to match the bolting grade.
A194 2H / 8M · DIN 934Washers
Plain, spring, taper, serrated and sealing washers – plus punched rings and spacers to drawing.
DIN 125 / 127 · IS 2016Stud Bolts & Threaded Rod
Fully threaded studs with two heavy hex nuts for flange joints, and threaded rod in standard lengths.
A193 B7 / B8M · ASME B16.5 setsFoundation & Anchor Bolts
L-type, J-type and plate-anchor foundation bolts made to your drawing and length.
Made to drawingU-Bolts & Clamps
Pipe U-bolts, clamps and supports in carbon and stainless steel, plain or galvanised.
To pipe ODGrades & Property Classes
| Grade / Class | Standard | Typical strength | Used for |
|---|---|---|---|
| Class 8.8 | ISO 898-1 / IS 1367 | 800 MPa tensile · 640 MPa yield | General high-tensile structural and machine bolting |
| Class 10.9 | ISO 898-1 | 1000 MPa tensile · 900 MPa yield | Heavily loaded joints, machine tools, structures |
| Class 12.9 | ISO 898-1 | 1200 MPa tensile · 1080 MPa yield | Socket head cap screws, dies, high-load fixtures |
| A2-70 (304) | ISO 3506 | 700 MPa tensile · 450 MPa proof | General stainless fastening, food and outdoor use |
| A4-80 (316) | ISO 3506 | 800 MPa tensile · 600 MPa proof | Marine, chloride and chemical environments |
| ASTM A193 B7 | ASTM A193 | 860 MPa tensile · 720 MPa yield | Flange bolting for high-temperature service |
| ASTM A193 B8 / B8M | ASTM A193 | Class 1 annealed or Class 2 strain hardened | Stainless flange bolting (304 / 316) |
| ASTM A194 2H / 8 / 8M | ASTM A194 | Matching nut grades | Nuts for B7 and B8 / B8M studs |
Finishes:
- Self colour / plain
- Zinc plated
- Hot-dip galvanised
- Black oxide
- Xylan / PTFE coated*
- Passivated (SS)
Structural Sections
Angles, Channels, Beams & Tees
Hot-rolled sections in structural steel and stainless, cut to your lengths.
Angles (L)
Equal and unequal angles for frames, supports, brackets and trusses.
20×20×3 – 200×200×25 mmChannels (C / U)
Structural channels for frames, purlins, machine bases and skids.
75×40 – 400×100 mmBeams (I / H)
Joists, wide-flange beams and columns for structures and platforms.
ISMB 100 – 600 · IPE / HEBTees & Flats
Rolled tee sections and flat bars (patti) for frames, edging and fabrication.
Cut to lengthMaterials
- IS 2062 E250 / E350
- ASTM A36
- S235 / S275 / S355
- SS 304 / 304L
- SS 316 / 316L
- Duplex 2205*
- Aluminium 6061 / 6063
Stainless angles and channels are hot rolled or laser fabricated to size. *On request.
Sizes & Standards
- Angles
- Equal 20×20×3 to 200×200×25 mm; unequal on request
- Channels
- 75×40 to 400×100 mm (ISMC / UPN)
- Beams
- ISMB 100 – 600, IPE, HEA / HEB
- Standards
- IS 808 (dimensions), IS 2062 (material), EN 10025, ASTM A36, ASTM A276 (stainless shapes)
Circles & Rings
Cut Circles, Rings & Blanks
Round blanks cut from plate or forged to size – ready for pressing, machining or welding.
Plate Circles
Circles cut from plate or sheet for dished ends, covers, blanks and pressing.
Any diameter, any thicknessRings & Spacers
Rings cut or forged with a bore – for flange backing, spacers, bearing housings and seals.
OD × ID × thicknessForged Rings
Seamless rolled rings in alloy, stainless and nickel grades for gears, bearings and flanges.
Made to sizeProfile-Cut Blanks
Laser, plasma or waterjet cut parts to your DXF drawing, in plate or sheet.
To drawing
Engineering Plastics
Nylon, PTFE & Polypropylene
Light, corrosion-proof and self-lubricating alternatives to metal for wear parts, seals and insulation.
| Material | Forms & Sizes | Service Temperature | Key Properties & Uses |
|---|---|---|---|
| Nylon (PA6)Cast & extruded | Rod Ø10 – 300 mm · Sheet 5 – 100 mm · Tube & flats | Approx. −40 to +100 °C | Tough, wear resistant and self-lubricating – bushes, gears, rollers, sheaves, wear pads |
| PTFE / TeflonVirgin & filled | Rod Ø5 – 250 mm · Sheet 1 – 50 mm · Tape & skived film | Approx. −200 to +260 °C | Lowest friction, chemically inert, excellent insulator – seals, gaskets, valve seats, slide pads |
| Polypropylene (PP)Homo & copolymer | Sheet 2 – 50 mm · Rod · Flats · Welding rod | Approx. 0 to +100 °C | Acid and alkali resistant, weldable – tanks, ducting, pickling and plating equipment |
Other polymers – UHMWPE, acetal, PVC, acrylic and filled grades – can be sourced on request. Plastics are supplied cut to size like our metal products.
Wire & Fabricated Items
Wire Mesh, Wire Rope, Perforated Sheet & Job Work
Wire products and welding consumables in the same grades as our bars and plates – plus forged and bent components made to your drawing.
Wire Mesh
Woven and welded mesh in stainless, GI and mild steel – square, rectangular and fine filter mesh by aperture and wire diameter.
SS 304 / 316 · GI · MSWire Rope
Steel and stainless wire rope in standard constructions (6×19, 6×36, 7×7, 7×19) for lifting, rigging and marine use.
By diameter & constructionPerforated Sheet
Round, square and slotted perforations in stainless, MS, GI and aluminium sheet for screens, guards, filters and façades.
Hole size · pitch · open areaFiller Wire & Electrodes
TIG filler wire, MIG wire and electrodes matching the base metal – stainless, duplex, nickel alloy, low-alloy and carbon steel.
ER308L · ER316L · ER2209 · ERNiCrMo-3Forging Items
Open and closed die forgings – rings, discs, blocks, shafts and flanged parts – in alloy, stainless and nickel grades, rough or proof machined.
To drawing · with MTCBending & Fabricated Items
Pipe and bar bending, plate rolling and press-braked parts – material supplied and formed to your drawing as job work.
Job work · made to orderAny other material, grade or size can be sourced on request – send the drawing or specification and we will quote.
Standards
Specifications We Supply To
Fastener, section and material standards commonly specified with these products.
Quality
Checked Like Everything Else
Small items matter – a wrong bolt grade can fail a joint as easily as a wrong pipe.
Hardness & Proof Load
Fastener hardness and proof load testing to confirm the property class supplied.
- ISO 898-1
- ASTM F606
Chemical Analysis
Material composition reported on the mill or manufacturer's test certificate.
- ASTM E415
- EN 10204
PMI
Positive material identification on stainless and alloy fasteners before dispatch.
- XRF / OES
Dimensional Checks
Thread gauging, length, head dimensions and section sizes checked against the standard.
- ISO 965 threads
- IS 808
Applications
Where These Items Are Used
The supporting cast on almost every project we supply.
Flange Bolting
B7 / B8M stud sets with 2H / 8M nuts for piping joints
Structural Fabrication
Angles, channels and beams for frames, platforms and supports
Plant Maintenance
Replacement fasteners, wear pads, bushes and spacers
Chemical Plant
PP tanks and ducting, PTFE seals, A4-80 stainless fasteners
Pressure Vessels
Circles for dished ends, rings, spacers and vessel bolting
Machine Building
Nylon gears and rollers, forged rings, high-tensile fixings
Water & Marine
Galvanised and A4 stainless fixings, U-bolts and clamps
Job Work & Repairs
Small quantities, cut pieces and one-off replacements
How to Order
What to Specify in Your Enquiry
Send these details and we can quote accurately – usually the same working day.
- 1ItemBolt, nut, washer, angle, channel, circle, rod…
- 2SizeThread size & length, or section size, or OD × ID × thickness
- 3Material / classe.g. A193 B7, A4-80, IS 2062 E250, PA6
- 4StandardDIN, ISO, IS, ASTM – or a drawing for special items
- 5FinishPlain, zinc, galvanised, black, passivated
- 6QuantityPieces, sets, metres or kilograms
- 7CertificationEN 10204 3.1, test reports, PMI if required
Frequently Asked Questions
Which bolting should I use with my flanges?
For carbon steel flanges in general and high-temperature service, ASTM A193 B7 studs with A194 2H nuts are the usual combination. For stainless piping use B8 or B8M (304 / 316) studs with matching 8 or 8M nuts, and for low-temperature service A320 L7. We supply complete stud-and-nut sets to suit the flange size and class.
What is the difference between A2-70 and A4-80 stainless fasteners?
A2 is 304-type stainless and A4 is 316-type, which contains molybdenum for much better resistance to chlorides – so A4 is the choice near the sea, in swimming pools and in chemical plants. The number is the strength: A2-70 is 700 MPa tensile, A4-80 is 800 MPa.
Can you supply small quantities?
Yes. Alongside project quantities we supply small lots and single pieces for maintenance and repair work – a few bolts, one cut circle, a metre of angle or a short length of nylon rod.
Do you cut angles, channels and beams to length?
Yes, sections are cut to your length list. Circles, rings and profile-cut parts are produced to your diameters or DXF drawing.
Can you make foundation bolts and special fasteners to drawing?
Yes – L-type, J-type and plate-anchor foundation bolts, long studs, special-length threaded rod and made-to-drawing fasteners can be produced in the grade you specify.
Which plastic should I choose for a bush or wear pad?
Nylon (PA6) is tough, wear resistant and self-lubricating, and suits bushes, rollers and gears. PTFE has the lowest friction and is chemically inert but softer, so it suits seals, slide pads and valve seats. Polypropylene is for chemical resistance rather than wear – tanks, ducting and pickling equipment.
General Enquiry
One Enquiry, the Whole List
Fasteners, sections, circles, rings or plastics – send the list and we'll quote it together with your pipes, plates and bars.