TVS Hex Socket Keys, metric standard length – hexagon sizes 0.7 to 36 mm, hardened steel (45 to 52 HRC)

TVS Sundram Fasteners Hex Socket Keys, metric standard length are L-shaped hexagon keys (Allen keys) made by Sundram Fasteners Limited to IS 3082 / ISO 2936 / DIN 911, in metric hexagon sizes 0.7 to 36 mm, hardened to 52 HRC for hexagon sizes 0.7 to 8 mm; 48 HRC for hexagon sizes 9 to 14 mm; 45 HRC for hexagon sizes 15 to 36 mm, supplied in zinc phosphate finish. They drive socket head cap screws, set screws and other internal-hexagon fasteners: the short arm goes into the socket and the long arm is the lever for torque, or the long arm goes in for reach.

SFL's retail price list of October 2026 gives recommended retail list prices from Rs 1,250 to Rs 695,810 per 100 pieces across the listed sizes; the exact price for your sizes and length series is confirmed on enquiry.

Jai Enterprises is an authorised distributor of TVS Sundram Fasteners high tensile fasteners and supplies them from Bhilai and Raipur all over Chhattisgarh - Bhilai, Raipur, Durg, Korba, Bilaspur, Raigarh, Jagdalpur, Kanker, Ambikapur and every other district - and across India.

Is this the right one for you?

Check these three things before you order:

• Your screws have metric hexagon sockets; the key size must match the socket exactly - a loose key rounds the socket.
• The sizes you need are within hexagon sizes 0.7 to 36 mm.
• Standard length suits you: compact, strong, and the usual choice for toolkits and maintenance.

List prices (SFL, 1 October 2026)

Prices are SFL's recommended retail list prices effective 1 October 2026, in rupees per 100 pieces, for the zinc phosphate finish. A few sizes are shown; ask us for any other size in the range. 0.7 mm, 0.9 mm, 1.3 mm, 3.5 mm, 4.5 mm, 11.0 mm, 13.0 mm, 15.0 mm, 16.0 mm, 18.0 mm, 21.0 mm, 23.0 mm, 29.0 mm and 30.0 mm are not on the list and are quoted on enquiry.

• 1.5 mm hex key: Rs 1,565 per 100 pieces
• 4.0 mm hex key: Rs 2,460 per 100 pieces
• 8.0 mm hex key: Rs 7,710 per 100 pieces
• 12.0 mm hex key: Rs 19,690 per 100 pieces
• 22.0 mm hex key: Rs 115,160 per 100 pieces
• 36.0 mm hex key: Rs 695,810 per 100 pieces
• Zinc phosphate finish; packed per box in 100, 50, 25, 10, 5 and 4 depending on size

At a glance

• Brand: TVS Sundram Fasteners (Sundram Fasteners Limited, TVS group)
• Product: Hex Socket Keys, metric standard length
• Standard: IS 3082 / ISO 2936 / DIN 911
• Sizes: hexagon sizes 0.7 to 36 mm
• Type: L-shaped hexagon key
• Hardness: 52 HRC for hexagon sizes 0.7 to 8 mm; 48 HRC for hexagon sizes 9 to 14 mm; 45 HRC for hexagon sizes 15 to 36 mm
• Material: Steel
• Surface finish: zinc phosphate
• List price: Rs 1,250 - 695,810 per 100 pieces (SFL list, 1 October 2026); exact price on enquiry
• Supplied by: Jai Enterprises, Bhilai and Raipur - to every district of Chhattisgarh and across India, +91 9340081159

Specifications and dimensions

• Standard: IS 3082 / ISO 2936 / DIN 911
• Material: steel, hardened and tempered
• Hardness: 52 HRC for hexagon sizes 0.7 to 8 mm; 48 HRC for hexagon sizes 9 to 14 mm; 45 HRC for hexagon sizes 15 to 36 mm
• Surface finish options: zinc phosphate
• 0.7 mm: across flats 0.71 mm, across corners 0.79 mm; long arm 33.0 mm, short arm 7.0 mm
• 0.9 mm: across flats 0.89 mm, across corners 0.99 mm; long arm 33.0 mm, short arm 11.0 mm
• 1.3 mm: across flats 1.27 mm, across corners 1.42 mm; long arm 41.0 mm, short arm 13.0 mm
• 1.5 mm: across flats 1.50 mm, across corners 1.68 mm; long arm 46.5 mm, short arm 15.5 mm
• 2.0 mm: across flats 2.00 mm, across corners 2.25 mm; long arm 52.0 mm, short arm 18.0 mm
• 2.5 mm: across flats 2.50 mm, across corners 2.82 mm; long arm 58.5 mm, short arm 20.5 mm
• 3.0 mm: across flats 3.00 mm, across corners 3.39 mm; long arm 66.0 mm, short arm 23.0 mm
• 3.5 mm: across flats 3.50 mm, across corners 3.96 mm; long arm 69.5 mm, short arm 25.5 mm
• 4.0 mm: across flats 4.00 mm, across corners 4.53 mm; long arm 74.0 mm, short arm 29.0 mm
• 4.5 mm: across flats 4.50 mm, across corners 5.10 mm; long arm 80.0 mm, short arm 30.5 mm
• 5.0 mm: across flats 5.00 mm, across corners 5.67 mm; long arm 85.0 mm, short arm 33.0 mm
• 6.0 mm: across flats 6.00 mm, across corners 6.81 mm; long arm 96.0 mm, short arm 38.0 mm
• 7.0 mm: across flats 7.00 mm, across corners 7.94 mm; long arm 102.0 mm, short arm 41.0 mm
• 8.0 mm: across flats 8.00 mm, across corners 9.09 mm; long arm 108.0 mm, short arm 44.0 mm
• 9.0 mm: across flats 9.00 mm, across corners 10.23 mm; long arm 114.0 mm, short arm 47.0 mm
• 10.0 mm: across flats 10.00 mm, across corners 11.37 mm; long arm 122.0 mm, short arm 50.0 mm
• 11.0 mm: across flats 11.00 mm, across corners 12.51 mm; long arm 129.0 mm, short arm 53.0 mm
• 12.0 mm: across flats 12.00 mm, across corners 13.65 mm; long arm 137.0 mm, short arm 57.0 mm
• 13.0 mm: across flats 13.00 mm, across corners 14.79 mm; long arm 145.0 mm, short arm 63.0 mm
• 14.0 mm: across flats 14.00 mm, across corners 15.93 mm; long arm 154.0 mm, short arm 70.0 mm
• 15.0 mm: across flats 15.00 mm, across corners 17.07 mm; long arm 161.0 mm, short arm 73.0 mm
• 16.0 mm: across flats 16.00 mm, across corners 18.21 mm; long arm 168.0 mm, short arm 76.0 mm
• 17.0 mm: across flats 17.00 mm, across corners 19.35 mm; long arm 177.0 mm, short arm 80.0 mm
• 18.0 mm: across flats 18.00 mm, across corners 20.49 mm; long arm 188.0 mm, short arm 84.0 mm
• 19.0 mm: across flats 19.00 mm, across corners 21.63 mm; long arm 199.0 mm, short arm 89.0 mm
• 21.0 mm: across flats 21.00 mm, across corners 23.91 mm; long arm 211.0 mm, short arm 96.0 mm
• 22.0 mm: across flats 22.00 mm, across corners 25.05 mm; long arm 222.0 mm, short arm 102.0 mm
• 23.0 mm: across flats 23.00 mm, across corners 26.16 mm; long arm 233.0 mm, short arm 108.0 mm
• 24.0 mm: across flats 24.00 mm, across corners 27.33 mm; long arm 248.0 mm, short arm 114.0 mm
• 27.0 mm: across flats 27.00 mm, across corners 30.75 mm; long arm 277.0 mm, short arm 127.0 mm
• 29.0 mm: across flats 29.00 mm, across corners 33.03 mm; long arm 311.0 mm, short arm 141.0 mm
• 30.0 mm: across flats 30.00 mm, across corners 34.17 mm; long arm 315.0 mm, short arm 142.0 mm
• 32.0 mm: across flats 32.00 mm, across corners 36.45 mm; long arm 374.0 mm, short arm 157.0 mm
• 36.0 mm: across flats 36.00 mm, across corners 41.01 mm; long arm 391.0 mm, short arm 176.0 mm
• Note: standard IS 3082 (printed as ISO 3082 in the catalogue; IS 3082 in SFL's price list)
• Note: hardness for hexagon sizes 1.5 to 8 mm: 52 HRC in the catalogue, 50 HRC in SFL's price list - confirm with us if it matters for your use
• Source: SFL's technical product catalogue (September 2026 edition) and SFL's digital product catalogue; dimensions in mm

Why choose TVS Sundram Fasteners

• Made by Sundram Fasteners Limited, a TVS group company making high tensile fasteners since 1966: first Indian company with ISO 9000, IATF 16949:2016 certified, Deming Prize 2018 for 17 plants.
• Every lot is backed by a BIS, NABL and ISO/IEC 17025 certified laboratory - tensile, fatigue, torque-tension, salt spray and coating thickness testing - as described in SFL's technical product catalogue (September 2026 edition).
• Made to a named standard - IS 3082 / ISO 2936 / DIN 911 - with the dimensions published in SFL's technical catalogue, so parts interchange with any other maker's to the same standard.
• Hardened and accurately sized hexagon, so the key fills the socket and does not round it.

How to choose and fit

1. Choose the key by the socket size of the screw, not by the screw diameter; the screw tables on this site list the key size for each diameter.
2. Push the key fully into the socket before turning - a partly inserted key rounds the socket.
3. Short arm in the socket, long arm as the lever, for final tightening and for loosening; long arm in the socket, spun by the short arm, for speed and reach. Never extend the key with a pipe.

Where it is used

• assembly lines and toolkits
• maintenance of machines with socket head screws
• service of two-wheelers, vehicles and appliances

Other versions and series

• TVS Sundram Fasteners Hex Socket Keys, inch standard length - hexagon sizes 1/16" to 5/8", list price Rs 1,615 - 42,290 per 100
• TVS Sundram Fasteners Hex Socket Keys, metric long length - hexagon sizes 1.3 to 18 mm, list price Rs 2,650 - 18,935 per 100
• TVS Sundram Fasteners Hex Socket Keys, inch long length - hexagon sizes 1/16" to 5/8", list price Rs 2,650 - 7,045 per 100

Related products

• TVS Sundram Fasteners Socket Head Cap Screws, ISO 4762 metric - the screws these keys drive
• TVS Sundram Fasteners Socket Set Screws, knurled cup point, ISO 4029 - set screws with the same sockets

Frequently asked questions

What is the price of Hex Socket Keys, metric standard length?

SFL's recommended retail list price effective 1 October 2026 runs from Rs 1,250 to Rs 695,810 per 100 pieces across the listed sizes, for the zinc phosphate finish. The examples above show typical sizes. Call Jai Enterprises on +91 9340081159 with your sizes, grade, finish and quantity for the exact price; key sets and other finishes are quoted on enquiry.

What is the difference between standard and long keys?

Both have the same hexagon; the long series has a longer long arm, for reach into deep counterbores and recessed screws (and more leverage when that arm is used as the lever). The dimensions are in the table above.

Are TVS Hex Socket Keys, metric standard length available in Chhattisgarh?

Yes. Jai Enterprises, an authorised distributor of TVS Sundram Fasteners, supplies from Bhilai and Raipur all over Chhattisgarh and across India. Call +91 9340081159 or use the enquiry form.

Can I get a different finish or a non-listed size?

Yes. The standard finish is zinc phosphate; other finishes and sizes or lengths outside the list are quoted on enquiry from SFL.

How to order

Call Jai Enterprises on +91 9340081159 or send an enquiry with the sizes, length series and quantity of Hex Socket Keys, metric standard length you need. SFL's list price is Rs 1,250 - 695,810 per 100 pieces across the listed sizes (SFL list, 1 October 2026); the exact price is confirmed on enquiry. We supply from Bhilai and Raipur all over Chhattisgarh - Bhilai, Raipur, Durg, Korba, Bilaspur, Raigarh, Jagdalpur, Kanker, Ambikapur and every other district - and across India.