M4 Allen CSK Screw for Precision Fastening
M4 Allen CSK Screw for Precision Fastening
M4 Allen CSK Screw for Precision Fastening
M4 Allen CSK Screw for Precision Fastening
M4 Allen CSK Screw for Precision Fastening
M4 Allen CSK Screw for Precision Fastening

M4 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 6-50mm, DIN 7991

SKU: Allen_CSK_M4_50mm_100pcs
Availability: In Stock
Length: 50mm
Qty: 100 pcs
Rs. 1,338.00
Rs. 2,007.00
Rs. 1,338.00

Rs. 13.38 / piece · 100 pcs

See all 60 sizes & order several at once ↓

Subtotal: Rs. 1,338.00

Key specs

Size
M4
Length
50mm
Pitch
0.7 mm (coarse)
Standard
DIN 7991
Material
High Tensile Steel
Grade
10.9
Finish
Blackened and coated with Rust Preventive Oil.
Head / drive
Socket / Allen
Allen key
2.5 mm
Thread
Fully Threaded
Pack
100 pcs
M4 Allen CSK Screw for Precision Fastening

Vendor: RPI SHOP

M4 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 6-50mm, DIN 7991

Rs. 2,007.00 Rs. 1,338.00

Vendor: RPI SHOP

M4 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 6-50mm, DIN 7991

Rs. 2,007.00 Rs. 1,338.00
Size: M4
Length: 50mm
Qty: 100Pcs
DIN 7991 · Socket head · Allen drive · Grade 10.9 · Fully Threaded
60 options · prices include GST · dispatch in 1-2 business days
Length = from under the head
No sizes selected yet
Size × Length10 pcs25 pcs50 pcs75 pcs100 pcs
M4 × 6mm10 pcs
Rs. 73
Rs. 7.30/pc
25 pcs
Rs. 112
Rs. 4.48/pc
50 pcs
Rs. 177
Rs. 3.54/pc
75 pcs
Rs. 243
Rs. 3.24/pc
100 pcs
Rs. 308
Rs. 3.08/pc
M4 × 8mm10 pcs
Rs. 73
Rs. 7.30/pc
25 pcs
Rs. 112
Rs. 4.48/pc
50 pcs
Rs. 177
Rs. 3.54/pc
75 pcs
Rs. 243
Rs. 3.24/pc
100 pcs
Rs. 308
Rs. 3.08/pc
M4 × 10mm10 pcs
Rs. 74
Rs. 7.40/pc
25 pcs
Rs. 116
Rs. 4.64/pc
50 pcs
Rs. 186
Rs. 3.72/pc
75 pcs
Rs. 255
Rs. 3.40/pc
100 pcs
Rs. 324
Rs. 3.24/pc
M4 × 12mm10 pcs
Rs. 74
Rs. 7.40/pc
25 pcs
Rs. 116
Rs. 4.64/pc
50 pcs
Rs. 186
Rs. 3.72/pc
75 pcs
Rs. 255
Rs. 3.40/pc
100 pcs
Rs. 324
Rs. 3.24/pc
M4 × 15mm10 pcs
Rs. 76
Rs. 7.60/pc
25 pcs
Rs. 121
Rs. 4.84/pc
50 pcs
Rs. 195
Rs. 3.90/pc
75 pcs
Rs. 270
Rs. 3.60/pc
100 pcs
Rs. 344
Rs. 3.44/pc
M4 × 20mm10 pcs
Rs. 78
Rs. 7.80/pc
25 pcs
Rs. 125
Rs. 5.00/pc
50 pcs
Rs. 203
Rs. 4.06/pc
75 pcs
Rs. 282
Rs. 3.76/pc
100 pcs
Rs. 360
Rs. 3.60/pc
M4 × 25mm10 pcs
Rs. 83
Rs. 8.30/pc
25 pcs
Rs. 139
Rs. 5.56/pc
50 pcs
Rs. 230
Rs. 4.60/pc
75 pcs
Rs. 322
Rs. 4.29/pc
100 pcs
Rs. 414
Rs. 4.14/pc
M4 × 30mm10 pcs
Rs. 90
Rs. 9.00/pc
25 pcs
Rs. 154
Rs. 6.16/pc
50 pcs
Rs. 261
Rs. 5.22/pc
75 pcs
Rs. 368
Rs. 4.90/pc
100 pcs
Rs. 475
Rs. 4.75/pc
M4 × 35mm10 pcs
Rs. 148
Rs. 14.80/pc
25 pcs
Rs. 301
Rs. 12.04/pc
50 pcs
Rs. 555
Rs. 11.10/pc
75 pcs
Rs. 810
Rs. 10.80/pc
100 pcs
Rs. 1,064
Rs. 10.64/pc
M4 × 40mm10 pcs
Rs. 156
Rs. 15.60/pc
25 pcs
Rs. 319
Rs. 12.76/pc
50 pcs
Rs. 591
Rs. 11.82/pc
75 pcs
Rs. 864
Rs. 11.52/pc
100 pcs
Rs. 1,136
Rs. 11.36/pc
M4 × 45mm10 pcs
Rs. 156
Rs. 15.60/pc
25 pcs
Rs. 319
Rs. 12.76/pc
50 pcs
Rs. 591
Rs. 11.82/pc
75 pcs
Rs. 864
Rs. 11.52/pc
100 pcs
Rs. 1,136
Rs. 11.36/pc
M4 × 50mm10 pcs
Rs. 176
Rs. 17.60/pc
25 pcs
Rs. 370
Rs. 14.80/pc
50 pcs
Rs. 692
Rs. 13.84/pc
75 pcs
Rs. 1,015
Rs. 13.53/pc
100 pcs
Rs. 1,338
Rs. 13.38/pc

Green = lowest price per piece for that size. Type quantities in any boxes, then add them all at once.

Need more than the largest pack? Get a bulk price on WhatsApp
Size & thread
SizeM4
Length50mm
Pitch0.7 mm (coarse)
ThreadFully Threaded
StandardDIN 7991
Head & drive
HeadSocket
DriveAllen
PointRound Point
Origin
Country of originIndia
Marketed byRPI SHOP
Material & finish
MaterialHigh Tensile Steel
Grade10.9
FinishBlackened and coated with Rust Preventive Oil.
ColourBlack
Pack
Pack100 pcs
In the pack100Pcs of allen CSK screws
Not includedNuts and Washers Aren't included with screws
Packaging weight450gms
Use & notes
Recommended usesCommercial / Residential

Features

  1. Allen CSK (Countersunk) screw, also known as Allen flat head screw, features a recessed head with a flat top, designed to sit flush with the surface when installed.

Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root runout) increases fatigue life in this critical head-shank juncture. Controlled heat treatment produces maximum strength without brittleness. Accurate control of socket depth gives more wrench engagement permits full tightening without cracking or reaming the socket yet provides ample metal in the crucial fillet area for maximum head strength. Contour-following lines provide extra shear strength and provide high fatigue resistance.

The Allen CSK screw at RPI Shop offers a flush fastening solution with a countersunk design, making it ideal for applications where a smooth, clean finish is required. Whether you're working on mechanical, automotive, or construction projects, these screws provide superior strength and precision. The hexagonal drive of the Allen CSK screw ensures easy installation and secure fastening, minimizing the risk of stripping. Available in various sizes, these screws are perfect for projects requiring both strength and aesthetics. Trust RPI Shop to supply you with premium Allen CSK screws that are built to last.

How long does delivery take, and what does it cost?

Delivery within India takes 2-5 days. It is free on orders of Rs 500 and above; below that it costs Rs 69. Orders are processed and dispatched within 1-2 business days after payment; weekend and holiday orders are processed the next business day. We also ship to 28 countries, including UAE, UK, USA and Australia, at a flat Rs 1,700 per order.

How can I pay? Is Cash on Delivery available?

Online payments go through Razorpay secure checkout. Cash on Delivery is available on orders above Rs 99; a COD fee of Rs 49 per order applies.

Do prices include GST, and do I get a GST invoice?

All prices on the site include GST. Enter your GSTIN at checkout and your invoice is issued with it.

How do I order several sizes at once?

Open "All Sizes & Prices" on the product page, type a quantity against each size and press "Add selected to cart"; all sizes go to the cart in one step.

What are the pack sizes, and what is the price per piece?

Fasteners are sold in packs; the pack quantity is in the size name and in the Pack row of Specifications. Most screw packs are 10, 25, 50, 75 or 100 pieces. Heat shrink, sleeving and wire are sold per metre. The price per piece or metre is shown under the price, on product cards and in the size grid, where the green cell is the cheapest per piece.

Which thread standard and material grades do you use?

All metric threads are ISO coarse; the pitch for each size is in the Key specs box and the Specifications tab. Screws marked 12.9, 10.9 or 8.8 are High Tensile Steel of that property class. All stainless steel items are grade 304.

What if the item is defective, wrong, or I ordered the wrong size?

Manufacturing defect: refund within 7 days of delivery, after verification. Wrong item delivered: full refund; the return is arranged by us. Wrong size ordered: we offer a replacement; you pay the additional shipping for it. Email ask@rpishop.in with your order number and invoice number. Returned items must be in their original packaging and condition. Refunds go to the original payment method and are processed every Tuesday and Friday.

How do I track my order?

A tracking link is sent by email and SMS when your order ships. Most orders ship by Delhivery. If you have an account, your orders are listed under My orders.

Do you take bulk or B2B orders, and how do I reach you?

Yes. For a quote, message us on the WhatsApp chat button or email ask@rpishop.in. B2B orders get a GST invoice with your GSTIN. Phone support: 9979944992, 10:00 AM to 5:00 PM IST.

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