• +(91) 022-6659 5844
  • sales@jigneshsteel.com

304/ 316 Stainless Steel Dome Nuts and Domed Cap Nut manufacturer in India

Acorn Nuts have a dome shape on one end of the fastener. They are also referred to as crown hex nut or dome nuts. Stainless Steel Acorn Nuts are a low carbon based alloy with good corrosion resistance and high tensile strength. Stainless Steel Acorn Lug Nuts when used in combination with a threaded fastener and an external male thread, the dome end of the Stainless Steel High Crown Acorn Nuts encloses the external thread, to either protect the thread or to protect nearby objects from coming contact with the thread.

In addition to offering protection to the threads, the dome on the Stainless Steel Acorn Cap Nuts gives the fastener a more finished and neater appearance. Polished 316 Stainless Steel Acorn Nuts can also be plated with chrome or be given a mirror finish.

There are two types of acorn nuts, one is the low also known as the standard acorn nut. While the other one is known as the high acorn nut. The high Stainless Steel Acorn Nuts Metric is wider and higher as compared to the standard nut. Its main functions are to protect  the extra long studs. In order to prevent loosening of the  Polished Stainless Steel Acorn Nuts , there is a provision for self-locking acorn nuts which have distorted threads in the hex area to create a tight friction fit.

The other industrial names for Dome nuts include – acorn not, cap nut or flange nut.  Stainless Steel Dome Nuts find themselves used in a wide array of applications. There are three reasons for using Stainless Steel Dome Head Nuts in various projects. These reasons are as follows  -

  • Protection of the thread – In applications where the occurrence of vibration is inevitable, M12 Stainless Steel Dome Nuts works as a protective shield minimizing thread damage that could be caused or resists the wear and tear  that could happen because of the vibrations.
  • Conceal unsightly fasteners – One of the advantages of using the m6 dome nut stainless steel is their smooth and perfect finish. This perfect finishing of the stainless dome nut helps to beautify the project. Therefore the stainless dome nut makes a perfect fastener in the applications concerning the automobile industry. As these fasteners help make the car finish look attractive.

Securing sharp threads – Many of the threaded rods have sharp threads that can cause cuts if not sealed properly. Apart from the sharpness of the thread, the uncovered protruding head of the thread can cause serious damage during accidents. Hence, in order to protect a person from getting hurt SS dome nuts are used to secure and cover the threads. Apart from this, the SS dome nuts  is easy to fix and the application receives an additive value by looking aesthetic.

Stainless Steel Acorn Nuts

Stainless Steel Acorn Nuts

Stainless Steel Dome Nuts

Stainless Steel Dome Nuts

Acorn Hex Cap Nuts

Acorn Hex Cap Nuts

Buy M4 M12 Stainless Steel Dome Nut and Acorn Lock Nut at factory price in Mumbai, view Acorn Head Bolts sizes, dimensions and price list

Stainless Steel Acorn Nuts Specifications

Looking for custom Dome Nut Bolt? Manufacturer and exporter of Stainless Steel Dome Head Nuts in all sizes and specification, contact Jignesh Steel for free sample

DIN Standard of Acorn Nuts DIN 1587
British standards of Acorn Nuts BS 57
Stainless Steel Acorn Nuts Size
  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg
  • Custom Metric Stainless Steel Acorn Nuts

 

Acorn Nuts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Acorn Nuts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
Standard

IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • American ASME
  • ANSI B 28.2.4 1M/ B 18.2.4 2M
  • International ISO
  • ANSI - American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • German DIN
  • Indian IS
  • British BS
  • American SAE
  • Polish PN
  • Spanish CSN
  • European EU
  • Italian UNI
Stainless Steel Acorn Nuts US Threads UNJF, BSW, METRIC, Unified national extra fine (UNEF), BSF, Unified national fine (UNF), UNK, Unified National Coarse (UNC), UNR, UNJC, Constant-pitch threads
UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF Acorn Nuts manufacturers in India
SS Acorn Nuts Dimensions ASME B 18.2.2
Acorn Nuts Surface Finish Zinc, Anodizing, Geometry, Sherardized, Plated zinc-nickel, black oxide, Dacroment, Hot Dip Galvanised (HDG), Self-Colour, Bright Zinc Plated (BZP), Stainless Steel Passivated, Nickel plated
Material Origin Stainless Steel Acorn Nuts are Western European. Eastern origin possible on request.
Metric Acorn Nuts Tolerances +/-0.01mm to +/-0.05mm
Stainless Steel Acorn Nuts Surface Coating
  • Xylon
  • Ptfe Coated Acorn Nuts
  • Manganese Phosphate
  • Hot Dipped Galvanized
  • Phosphate
  • Cadmium
  • Teflon
  • ASTM B695 zinc coating
  • Zinc Phosphate
  • ASTM F2329 Zinc coating, hot dip
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • ASTM A153 Zinc coating (hot dip)
  • ZAC (Zinc Alluminium Flake Coating)
  • ASTM F1941 Electrodeposited coatings (Zinc plating).

All Acorn Nuts surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.

Why Jignesh Steel?
  • Best Price in India compared to Stainless Steel Acorn Nuts manufacturers in China
  • Based in India, established in Year 2008
  • Always final Inspection before shipment
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • Highly professional and technical team
  • Pre-production Acorn Nuts sample before mass production
Acorn Nuts Surface treatment
  • Polish
  • Anodizing
  • Heat-disposing
  • Passivation
  • Electroplating
  • Black oxide coating
  • Sand blasting
  • Rust preventive oil
  • Hot dip galvanized
Other Top Stainless Steel Acorn Nuts Manufacturers Omni, APL, Unbrako, Kundan, Deepak Fasteners, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
Stainless Steel Acorn Nuts marking and Packing
  • Acorn Nuts Marking as per product specification
  • Wooden Pallet, Canton, Carton / Small Box or as required
  • Carton size : 36* 24 *16 CM & 36 *24 *12 CM  or as required
  • Pallet size: Standard Euro Pallet 110* 80 *90 CM
MOQ 5 pieces
Preferred Acorn Nuts Drawing Formats JPEG, PDF, CAD, STP, IGS
Free Samples Yes
Delivery time Regular product is about 7-15 days, custom product will according to special requirement
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Common Acorn Nuts material grades
  • Stainless Steel Acorn Nuts: 18-8 Stainless Steel, 304, 316, 316L, 2205, 410, 431, 416, 440C, 18-8, 4.8, 8.8, A2, A4, A2-50, A2-70, A2-80, A4-50, A4-70, A4-80, A194 8M, A194 Grade 6, A194 7m, A194 Grade 8 Acorn Nuts
  • High Tensile Acorn Nuts: 10.9 Grade, 12.9 Grade, 8.8 Grade Acorn Nuts
  • Alloy steel Acorn Nuts: 4130/ 4140
  • Carbon Steel Acorn Nuts : A194 Grade 1, A194 Grade 2, A194 Grade 2HM, A194 Grade 4, A194 Grade , A194 Grade 7m, A194 Grade 2H Acorn Nuts
  • Bronze Acorn Nuts: C51000, C52100, C54400 etc
  • Brass Acorn Nuts: C36000, C37700, C38500, C27200, C28000
  • Titanium Acorn Nuts
  • Aluminum Acorn Nuts: Al6063/ Al6061
Port of Dispatch Mumbai or Kalamboli ports in Mumbai, India
Test Certificates provided by Stainless Steel Acorn Nuts manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • Acorn Nuts Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • Acorn Nuts Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • Calibrated gauges and tools
Find our dealers & distributors of Stainless Steel Acorn Nuts Caracas, Gimhae-si, Coimbatore, Brisbane, Karachi, Nashik, Courbevoie, Istanbul, Tau, Jakarta, Perth, Rajkot, Indore, Riyadh, Patna, Bogota, Doha, Sharjah, Bangalore, Khobar, Ahvaz, Gujarat, Lucknow, Vung Granada, Bengaluru, Ludhiana, Santiago, Abu Dhabi, Port-of-Spain, Ahmedabad, Mysuru, Calgary, Kanpur, Janeiro, Kuala Lumpur, Agra, Dammam, Dhaka, Vapi, New Delhi, Chennai, Shah Alam, Ankara, Pimpri-Chinchwad, Kolkata, Hyderabad, Montreal, London, Pune, Nagpur, Ranchi, Tehran, Noida, Navi Mumbai, Gurgaon, Baroda, Panipat, Thane, Melbourne, Lagos, Mexico, India, Vadodara, Sydney, Singapore, Dubai, Manama, Ernakulam, Mumbai, Jaipur, Muscat, Jamshedpur, Thiruvananthapuram, Houston, Kochi, Bhubaneswar, Howrah, Kuwait, Surat, Seoul
Acorn Nuts Application and Uses Industrial, Nuclear power, Wind tower, Construction, Electronic, Railway, Automotive indutries, these end users prefer to buy from Stainless Steel Acorn Nuts manufacturers in India
Other Fasteners
ISO - International Organization for Standardization

Stainless Steel Acorn Nuts Price List

Products FOB Price US $
ASME 18-8 Stainless Steel #8-32 Dome Nut Cap Nut US $0.02-$0.15/ Piece
M10 Hex Flange Cap Nut Dome US $0.02-$0.10/ Piece
Din 1587 Long Large Nuts Hot Dip Galvanized Hexagon Head Domed Collar Fastener Grade 6.8 US $0.02-$0.10/ Piece
M3-M22 Hex Cap Dome Nut DIN1587 Black White Nylon Plastic US $0.01-$0.20/ Piece
Brass H63 Hex Domed Acorn Nuts Cap Nut US $0.15-$1.45/ Piece
M6 M8 M10 M12 carbon steel zinc plated long acorn nut US $0.015-$0.25/ Piece
Stainless steel dome cap nut bolt M5 US $0.08/ Piece
DIN1587 Black Color Nylon Hex Domed Cap Nut US $0.02-$0.03/ Piece
M10 SS304 Stainless Steel Dome Nut US $0.05-$0.10/ Piece
A2-70 A4-70 M4 Hexagon Domed Nut US $0.01-$0.10/ Piece
Nickel Plated DIN1587 Hex Domed Nuts US $0.02/ Piece
M3 M4 M5 M6 M8 M10 M12 Acorn Nut / Cap nut US $0.02-$0.04/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details.

Types of Acorn Nuts

Acorn Head Bolts

Acorn Head Bolts

M12 M4 Dome Nuts

M12 M4 Dome Nuts

Acorn Cap Nuts

Acorn Cap Nuts

Finish Cap Nuts

Finish Cap Nuts

6mm Acorn Nut

6mm Acorn Nut

Acorn Lock Nut

Acorn Lock Nut

Domed Cap Nut

Domed Cap Nut

d h1 h2 s
M 4 5,6 9,6 7
M 5 6 10,5 8
M 6 7,5 12 10
M 8 8,9 14 13
M 10 10,5 18,1 17
M 12 13,5 22,5 19
M 16 16,5 27,5 24

Acorn Nuts dimensions

Acorn Nuts dimensions

  F B O H D T C
Nominal
Diamet & 
Thread Size
Across
Flats
Crown
Diameter
Overall
Height
hex
Height
Drill
Depth
Thread 
Length
Across
Corners
  ref ref ref ref max min ref
#6   0.1380 5/16 19/64 11/32 5/32 1/4 5/32 0.344
#8    0.1640 5/16 19/64 11/32 5/32 1/4 5/32 0.344
#10   0.1900 3/8 23/64 13/32 3/16 9/32 3/16 0.413
#12   0.2160 3/8 23/64 13/32 3/16 5/16 7/32 0.413
1/4     0.2500 7/16 13/32 15/32 7/32 11/32 1/4 0.488
5/16   0.3125 1/2 15/32 17/32 1/4 13/32 5/16 0.557
3/8   0.3750 9/16 17/32 5/8 9/32 29/64 3/8 0.628
7/16   0.4375 5/8 19/32 11/16 5/16 33/64 7/16 0.698
1/2  0.5000 3/4 23/32 13/16 3/8 19/32 1/2 0.840
9/16   0.5625 7/8 27/32 15/16 7/16 11/16 9/16 0.981
5/8   0.6250 15/16 29/32 1 15/32 3/4 5/8 1.051
3/4   0.7500 1-1/16 1-1/32 1-5/32 17/32 7/8 3/4 1.221
7/8   0.8750 1-1/4 1-7/32 1-23/64 5/8 1 7/8 1.402
1  1.0000 1-7/16 1-13/32 1-35/64 23/32 1-1/8 1 1.614

Check reference of our Dome Nut Bolt quality and delivery in following locations

ASME 18-8 Stainless Steel #8-32 Dome Nut Cap Nut Saudi Arabia (KSA), Egypt, Malaysia, Singapore
Nickel Plated DIN1587 Hex Domed Nuts Chile, Iran, Malaysia, Vietnam, Morocco, Singapore
Brass H63 Hex Domed Acorn Nuts Cap Nut South Africa, United Kingdom -UK, Los Alamos -Mexico, Malaysia
M3-M22 Hex Cap Dome Nut DIN1587 Black White Nylon Plastic Taiwan, South Africa, Kuwait, Jordan, Brazil
Stainless steel dome cap nut bolt M5 Japan, Czechia, Austria, Thailand, Malaysia
M6 M8 M10 M12 carbon steel zinc plated long acorn nut Australia, Peru, Denmark, Greece, Sweden, NY 12203 (USA), China
M10 SS304 Stainless Steel Dome Nut Malaysia, UK, Hungary, Philippines
DIN1587 Black Color Nylon Hex Domed Cap Nut Italy, Philippines, Poland, Indonesia, Malaysia
304 stainless steel Hex Connecting Domed Acorn Cap Nut France, Oman, Hong Kong, Singapore, UAE
A2-70 A4-70 M4 Hexagon Domed Nut Turkey, Europe, Vietnam, Canada, New Zealand, Dubai
Plastic Domed Protective Hex Nut Caps Europe, United Arab Emirates (UAE), Norway, Malaysia
M3 M4 M5 M6 M8 M10 M12 Acorn Nut / Cap nut USA, Netherlands, Romania, Ellington -United States
M10 Hex Flange Cap Nut Dome Malaysia, Russia, Germany, Portugal, UAE
SS Hex domed cap nuts DIN1587 Spain, Singapore, Malaysia, Mexico, UK
304 Stainless Steel Hex Cap Nut Canada, Dammam -KSA, Philippines, Belgium
M4 M5 M6 DIN1587 6mm Hex Domed Cap Nuts Malaysia, Qatar, Europe, Thailand
316 Stainless Steel Hexagon Domed Cap Nuts Colombia, Malaysia, Bangladesh, Finland
M6-M36 DIN1587 Hex cap nut acorn domed cap nut South Korea, Bahrain, Singapore, Argentina
Din 1587 Long Large Nuts Hot Dip Galvanized Hexagon Head Domed Collar Fastener Grade 6.8 Indonesia, Philippines, Jakarta - Indonesia, UK, Nigeria

Acorn Nuts Grade Markings

Understanding Acorn Nuts Grade and Classification

Acorn Nuts Grade
Identification
Marking
Acorn Nuts Specification Acorn Nuts Material Nominal Size ub Inches Acorn Nuts Proof
Load Stress ksi
Hardness
Rockwell
Min Max
Marking
No Mark
ASTM A563
- Grade 0
Carbon
Steel
1/4 thru
1-1/2
69 B55 C32
ASTM A563
- Grade A
Carbon
Steel
1/4 thru
1-1/2
90 B68 C32
ASTM A563 - Grade B Acorn Nuts Carbon Steel 1/4 thru 1 120 B69 C32
over 1
thru 1-1/2
105
Marking ASTM A563
- Grade C
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade C3
Atmospheric
Corrosion Resistant Steel May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade D
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 150 B84 C38
Marking ASTM A563
- Grade DH Acorn Nuts
Carbon
Steel
Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A563
- Grade DH3
Atmospheric
Corrosion Resistant Steel,Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 1
Carbon
Steel
1/4 thru 4 130 B70 -
Marking ASTM A194
- Grade 2
Medium
Carbon Steel
1/4 thru 4 150 159 352
Marking ASTM A194
- Grade 2H Acorn Nuts
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 2HM
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 150 159 237
Marking ASTM A194
- Grade 4
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7 Acorn Nuts
Medium
Carbon
Alloy Steel,Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7M
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 150 159 237

Stainless Steel Acorn Nuts Material and Grades

  • A4-80 Acorn Nuts
  • 410 Stainless Steel Acorn Nuts
  • A2 Acorn Nuts
  • A4 Acorn Nuts
  • 310 Stainless Steel Acorn Nuts
  • 304H Stainless Steel Acorn Nuts
  • 316L Stainless Steel Acorn Nuts
  • 321 Stainless Steel Acorn Nuts
  • A4-70 Acorn Nuts
  • 347 Stainless Steel Acorn Nuts
  • 17-4 PH Acorn Nuts
  • ASTM A194 Grade 8 Acorn Nuts (304)
  • 18-8 Stainless Steel Acorn Nuts
  • A2-70 Acorn Nuts
  • 18-8 Stainless Steel Acorn Nuts
  • 317L Stainless Steel Acorn Nuts
  • Duplex 2205 Acorn Nuts
  • ASTM A194 Grade 6 Acorn Nuts (410)
  • 304L Stainless Steel Acorn Nuts
  • 904L Stainless Steel Acorn Nuts
  • ASTM A194 Grade 8m Acorn Nuts (316)
  • 304 Stainless Steel Acorn Nuts
  • 316 Stainless Steel Acorn Nuts
  • 4.8 Acorn Nuts
  • ASTM A194 8C Acorn Nuts (347)
  • 316 Stainless Acorn Nuts
  • 8.8 Acorn Nuts
  • 317 Stainless Steel Acorn Nuts