Established 1943 • Specialist Supply & Sourcing

High Performance Fasteners for Critical Applications

B. Kantilal & Co. is a supplier and sourcing partner for High Nickel Alloy, Superalloy & Special Alloy Fasteners for demanding industrial applications.

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Metric & Imperial Reference

Size Charts

Initial sourcing focus: minimum 100 pcs per size. Final dimensions and tolerances are subject to the applicable standard or customer drawing.

Metric Size Range (mm)

Size	M6	M8	M10	M12	M16	M20	M24
Pitch (mm)	1.00	1.25	1.50	1.75	2.00	2.50	3.00
Across Flats (mm)	10	13	17	19	24	30	36
Typical Length (mm)	20–200	20–200	25–250	30–300	35–350	40–400	50–500

Imperial Size Range (inch)

Size	1/4"	5/16"	3/8"	1/2"	5/8"	3/4"	1"
Threads (UNC)	20	18	16	13	11	10	8
Threads (UNF)	28	24	24	20	18	16	14
Typical Length (inch)	3/4–6	3/4–6	1–6	1–8	1½–8	1½–10	1½–10

Imperial to Metric Approximate Equivalent

Imperial	Approx. Metric
1/4"	M6
5/16"	M8
3/8"	M10
1/2"	M12
5/8"	M16
3/4"	M20
1"	M24

Thread Series Available

UNC
Unified Coarse

UNF
Unified Fine

8UN
Aerospace / Special

Metric Coarse / Fine

BSW / BSF / NPT / BSP
where applicable

For other sizes, special threads and lengths — Please Enquire.

Our Heritage

Established in 1943

More than eight decades of business heritage. Today, B. Kantilal & Co. focuses on specialized supply and sourcing of high-performance alloy fasteners for critical applications.

Long-standing Business Heritage

Established in 1943, with a continuing focus on industrial materials and specialist supply.

Special Alloy Focus

Nickel alloys, superalloys and special alloy fasteners for demanding environments.

Supplier Network

We work with manufacturers, stockists and specialist suppliers according to customer requirements.

Fastener Portfolio

Products

Standard, aerospace and special fastener configurations, subject to material, size, specification and availability.

Bolts

Hex, heavy hex, high-strength and 12-point aerospace bolts.

Screws

Socket head cap screws, aerospace screws and special head configurations.

Studs

Stud bolts, double-end studs and threaded rods.

Nuts

Hex nuts, lock nuts and matching alloy nut solutions.

Washers

Matching material and specification washers.

Custom Fasteners

Drawing-based and specification-based fasteners for OEM and critical applications.

Materials

High Nickel Alloys & Superalloys

Inconel 600Inconel 601Inconel 625Inconel 718Inconel X-750Inconel 725 Incoloy 800Incoloy 800HIncoloy 800HTIncoloy 825 Hastelloy C22Hastelloy C276Monel 400Monel K500 A-286WaspaloyNimonicMP35NTitanium Grade 5

Critical Applications

Aerospace & Defence

For aerospace and defence enquiries, we can evaluate fasteners against the required part number, drawing or applicable specification.

Nickel & Superalloys

Inconel 625, Inconel 718, X-750, A-286 and other specialist grades on enquiry.

Thread Standards

UNC, UNF, 8UN and applicable aerospace/industrial thread specifications.

Documentation

Material certificates, traceability and inspection documentation subject to supplier and customer specification.

Quality & Traceability

Documentation for Critical Procurement

✓ Material Test Certificate (MTC)

✓ Heat Number / Traceability

✓ Chemical Composition

✓ Mechanical Testing

✓ Heat Treatment Certificate

✓ PMI Testing

✓ Dimensional Inspection

✓ Certificate of Origin

✓ EN 10204 3.1 / 3.2

✓ Third-Party Inspection

Applicable Standards

ASTMASMEAMSNASANMSSAEDINISOAPINACEOEM

Manufacturer-specific certifications such as AS9100/NADCAP/OEM approvals are to be confirmed for the selected supplier and product.

Custom Solutions

Drawing / Specification Based Fasteners

Send us the drawing, material grade, size, thread, length, quantity and required certification. We will evaluate suitable sourcing options.

Enquiry

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For a faster quotation, provide material, fastener type, size, length, thread, quantity, specification and delivery requirement.