Spherical Seat Nut for Mining Accessories
Steel dome nuts are assembled with thread bars are widely used in the mining ground support, tunneling ground support, construction, form works, etc.
Product Introduction
Product Introduction
● Dome nuts' performance will be better than the casting nuts.
● Normally, we do it with carbon steel 1045, black finish and T thread, or based on your drawings.
● Steel dome nuts are assembled with thread bars are widely used in the mining ground support, tunneling ground support, construction, form works, etc.
● Dome nuts will better fit the dome plate.
Product Parameter (Specification)

Item No. | Size | F | D | L | |||||
# | inch | mm | inch | mm | inch | mm | inch | mm | |
CLHN016-1 | 6 | 3/4" | 19 | 1.38 | 35 | 2.01 | 51 | 1.57 | 40 |
CLHN016-2 | 7 | 7/8" | 22 | 1.38 | 35 | 2.01 | 51 | 1.77 | 45 |
CLHN016-3 | 8 | 1" | 25 | 1.61 | 41 | 2.13 | 54 | 1.77 | 45 |
CLHN016-4 | 9 | 1-1/8" | 28 | 1.77 | 45 | 2.28 | 58 | 1.97 | 50 |
CLHN016-5 | 10 | 1-1/4" | 32 | 1.97 | 50 | 2.44 | 62 | 2.36 | 60 |
CLHN016-6 | 11 | 1-3/8" | 36 | 2.36 | 60 | 2.76 | 70 | 2.56 | 65 |
CLHN016-7 | 14 | 1-3/4" | 43 | 2.95 | 75 | 3.94 | 100 | 3.15 | 80 |
CLHN016-8 | 18 | 2-1/4" | 57 | 3.35 | 85 | 5.12 | 130 | 4.33 | 110 |
CLHN016-9 | 20 | 2-1/2" | 63.5 | 3.54 | 90 | 5.51 | 140 | 4.72 | 120 |
Products Details
Steel dome nut have a dome ball washer and a hex nut/square nut which assists with better alignment of the bolt and plate, as well as eliminating the need to carry two inventory items on site (nut & dome ball washer).


Product Qualification
● The factory has stable material supplier, strict production procedure and professional workers. Also has ISO quality certificate.

Production Procedure

Our Factory
Our factory covers about 15000sqm, which the floor space is about 10000sqm. We have have hundreds of employees, including 16 managers and engineers. Our fixed assets valued about RMB15000000. The tenet of the company: trive for survival on the basis if quality, take the market on the basis of reputation, welcome the customer on the basis of good service and develop in the basis of efforts.




Deliver, Shipping and Serving
● Finish them in 30days and pack them in the pallets or cartons.
● Shipment: delivery through Ningbo port or shanghai port, or by express as DHL, UPS,TNT etc.
● Serving: we have a professional, enthusiastic and responsible sales team make a great/timely service.
FAQ
Q1: Are you a manufacturer or trading company?
A: We are a manufacturer.
Q2: What is the term of Payment?
A: T/T, L/C, Western Union, Paypal; 30% T/T in advance, 70% against copy of B/L.
Q3: What are your main products?
A: Dielectric union and rock bolt accessories, like spherical nut, hex nut, spherical washer etc
Q4: Packaging & Shipping:
A:Packing: wooden pallet, wooden case or with outer carton, or as per customers' specific requirements.
Q5: Is it all right to make customer's own brand name?
A: OEM is ok.
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