Sanghvi Enterprises
Hex Bolts
Full and half-thread hex head bolts for machinery and structural work, in metric and inch sizes.
- Metric
- M3 – M48
- Inch
- 3/16″ – 1″
- Threads
- BSW, BSF, UNC, UNF
Industrial fasteners · Trusted since 1986
The right fastener, on time, every time.
With over 40 years in the fasteners business since 1986, we supply high tensile steel fasteners up to grade 12.9 and stainless steel A2 and A4 fasteners from M2 to M48, plus inch-size bolts from 3/16″ to 1″ in BSW, BSF, UNC and UNF threads, to manufacturers of construction equipment, agri products, defence equipment and machine tools. We are authorised distributors for Unbrako, UPSL, XPS and MFL, and also stock TVS and APL. Special fasteners are made in-house to your drawing.
40+ yrsIn fasteners, since 1986
3,500+SKUs in stock
M2–M48Metric range
3/16″–1″Inch: BSW, BSF, UNC, UNF
48 hrsDispatch on all stock items
Product range
What we stock
Standard sizes are held in ready stock. Ask us for special lengths, grades and finishes.
Hex Nuts
Standard hex nuts to match every bolt grade.
- Sizes
- M3 – M48
Socket Head Cap Screws
Allen cap screws for tooling, dies, moulds and precision assemblies.
- Sizes
- M2 – M42
Button Head Screws
Low-profile domed head for guards, covers and panels.
- Sizes
- M3 – M12
Socket CSK Screws
Countersunk socket screws that sit flush with the surface.
- Sizes
- M3 – M20
Socket Set Screws / Grub Screws
Headless screws for locking pulleys, collars and gears on shafts.
- Sizes
- M3 – M12
Nyloc Nuts
Nylon-insert lock nuts that resist loosening under vibration.
- Sizes
- M5 – M48
Castle Nuts
Slotted nuts locked with a split pin for axles, linkages and steering parts.
- Sizes
- On request
Dome Nuts
Acorn cap nuts that cover the bolt end for a safe, finished look.
- Sizes
- On request
Locknuts
Lock nuts that keep bolted joints and shaft assemblies from loosening under vibration.
- Sizes
- On request
Steel Balls
Hardened precision balls for bearings, valves and indexing mechanisms.
- Sizes
- On request
Dowel Pins
Hardened and ground pins for accurate location of mating parts.
- Sizes
- On request
Internal Threaded Pins
Dowel pins with a tapped hole for easy extraction from blind holes.
- Sizes
- On request
Taper Pins
Unhardened steel taper pins with domed ends, for accurate and repeatable location of mating parts.
- Sizes
- On request
Spring Dowel Pins
Slotted spring pins that hold by radial tension, no reaming needed.
- Sizes
- On request
Spiral Pins
Coiled pins that absorb shock and vibration in hinges and shafts.
- Sizes
- On request
Circlips
External and internal retaining rings for shafts and bores.
- Sizes
- On request
Threaded Inserts
Wear-resistant threads for aluminium, cast iron and soft materials.
- Sizes
- On request
Studs
Fully and double-end threaded studs, cut to length on request.
- Sizes
- On request
T-Nuts
Clamping nuts for machine-table T-slots and fixtures.
- Sizes
- On request
T-Bolts
T-head bolts for T-slot clamping on machine beds and fixtures.
- Sizes
- On request
Eye Bolts
Lifting eye bolts for hoisting machines, motors and heavy assemblies.
- Sizes
- On request
Pipe Plugs
Socket head plugs for sealing threaded ports in hydraulic, pneumatic and lubrication systems.
- Sizes
- On request
Grease Nipples
Straight and angled lubrication nipples for bearings and pivot points.
- Sizes
- On request
Copper Washers
Soft sealing washers for oil, fuel and hydraulic drain plugs and banjo joints.
- Sizes
- On request
Hardened Washers
Through-hardened washers for high tensile bolted joints and clamping.
- Sizes
- On request
Punched Washers
Plain punched washers that spread load and protect the joint surface.
- Sizes
- On request
Spring Washers
Single-coil spring lock washers in rectangular and square cross sections.
- Sizes
- On request
In-house manufacturing
Send your drawing
Special fasteners, made to order
Our own manufacturing setup caters to all types of special fastener requirements. Send us your drawing, sample or specification for non-standard sizes, lengths, threads, materials and finishes.
Authorised distributor
- Unbrako
- UPSL
- XPS
- MFL
Also stocked
- TVS
- APL
Materials, grades & treatments
Grades at a glance
We deal in high tensile steel up to grade 12.9 and stainless steel A2 and A4. Tell us the application and we will recommend the right grade.
| Property class | Material | Tensile strength | Typical use | Head marking |
|---|---|---|---|---|
| 8.8 | High tensile steel (medium carbon, Q&T) | 800 MPa | Structural steel, machinery frames | 8.8 |
| 10.9 | High tensile alloy steel, Q&T | 1,040 MPa | Heavy equipment, automotive, cranes | 10.9 |
| 12.9 | High tensile alloy steel, Q&T | 1,220 MPa | Dies, tooling, high-load joints | 12.9 |
| A2 | Stainless steel 304 | 700 MPa (A2-70) | Food, pharma, outdoor exposure | A2-70 |
| A4 | Stainless steel 316 | 700 – 800 MPa (A4-70 / A4-80) | Marine, chemical, coastal plants | A4-70A4-80 |
Minimum tensile strength values as per ISO 898-1 (steel, sizes up to M16) and ISO 3506-1 (stainless). Test reports and COC available on request, subject to MOQ.
Coatings & thread treatments
We supply products in all types of surface coatings and can assist with thread treatments such as Loctite patch application. Tell us what your drawing or application calls for.
- Trivalent zinc platingCr(VI)-free, RoHS-friendly corrosion protection
- Zinc flake coatingHigh corrosion resistance with no risk of hydrogen embrittlement
- SS blackeningBlack finish for stainless steel fasteners
- Loctite patchPre-applied threadlocker patch that resists loosening from vibration
- Many moreOther finishes available on request
Industries served
Who we supply
Construction equipment
High tensile bolts, nuts and Nyloc nuts for excavators, loaders, cranes and attachments.
Agri products
Fasteners for tractors, implements and farm machinery that work under vibration and heavy loads.
Defence
Precision socket screws, dowel pins and stainless fasteners for defence equipment and suppliers.
Machine tools
Socket screws, dowel pins, T-bolts and T-nuts for machines, dies and fixtures.
Why buyers choose us
Stock, paperwork, speed
Ready stock
Over 3,500 line items on the shelf, so most orders ship straight from our shelves.
Test reports on request
Test reports and certificates of conformance (COC) can be provided on request, subject to minimum order quantity.
48-hour dispatch
All items in stock are dispatched within 48 hours of order confirmation.
Quotes in 1–2 working days
Send your BOQ or drawing and get a priced quotation with lead times within 1–2 working days.
Inventory management programs
We keep your line stocked
We work with our customers to set up and implement inventory management programs such as Kanban and the 2-bin system, so the fasteners you use every day are always on hand.
Kanban
Replenishment driven by actual consumption. A Kanban card or signal tells us what you have used, and we refill to agreed quantities.
2-bin system
Each part is kept in two bins. When the first bin runs empty you switch to the second, and the empty bin is our signal to refill it.
- Map your partsWe list the fasteners you use and agree bin sizes and reorder quantities with you.
- Set up at your siteBins and Kanban cards are labelled and placed where your team uses them.
- We replenishEmpty bins and cards trigger refills, so your stock never runs out.
Fewer stock-outsLower inventory on handLess purchasing paperwork
Request for quotation
Send us your requirement
Share the size, grade, finish and quantity. For larger lists, attach your BOQ to an email.
Sales+91 99645 03370
Emailinfo@sanghvi-enterprises.com
AddressP3(E), Peenya Industrial Estate, 1st Phase
Near Peenya Police Station
Bangalore 560058, Karnataka, India
Near Peenya Police Station
Bangalore 560058, Karnataka, India
HoursMon – Sat, 9:30 am – 6:30 pm IST