Fasteners, Bolts & Nuts Saudi Arabia

Fasteners, Bolts & Nuts – Product Details

Diode Trading EST stocks industrial fasteners, bolts and nuts for flanged piping, structural steel, equipment mounting and general plant maintenance. Our range covers metric and inch threads in the grades most used in the Eastern Province, from plain carbon steel for general assembly to alloy steel stud bolts for pressure-rated flanges and stainless steel for corrosive and coastal environments.

Fasteners are supplied plain, zinc plated, hot-dip galvanised or PTFE coated to suit the service, and can be packed as complete bolt sets with nuts and washers for flange joints. Manufacturer test certificates are available on request for graded items.

Hex bolts and hex cap screws: Grade 8.8, 10.9, A307, A325, SAE Grade 5 and 8
Stud bolts and heavy hex nuts: ASTM A193 B7 / A194 2H, B8 and B8M stainless
Stainless steel fasteners: A2 (304) and A4 (316), metric and UNC
Anchor bolts, chemical anchors, expansion anchors and threaded rod
Nuts and washers: hex, nyloc, lock, flat, spring and tapered washers
Socket head cap screws, set screws, U-bolts and pipe clamps
Applications: flange joints, structural steel, equipment foundations, machinery assembly

Where it is used:

Refineries and petrochemical plants in Jubail, Ras Tanura and Yanbu
Structural steel and construction contractors in Dammam, Al Khobar and Riyadh
Power and desalination plants on the Gulf and Red Sea coasts
Fabrication workshops and equipment manufacturers in industrial cities
Maintenance teams in cement, mining and manufacturing plants

Do you stock stud bolts for flanges?
Yes. ASTM A193 B7 stud bolts with A194 2H nuts are held in common sizes and lengths, with stainless and coated options available.

Can fasteners be supplied with coatings?
Yes. Plain, zinc plated, hot-dip galvanised and PTFE coated finishes are available depending on the item.

Can you supply test certificates?
Manufacturer certificates for graded fasteners can be provided when requested with the order.

Fastener Supply from Dammam

Diode Trading EST supplies industrial fasteners, bolts and nuts from a warehouse in Dammam, serving contractors, fabricators and plant maintenance teams across Saudi Arabia. We are a trading and supply company: we source fasteners from established manufacturers and keep the commonly used grades and sizes in stock so that urgent flange, structural and equipment jobs can be supplied without delay.

Our stock focuses on the items most often requested locally, including hex bolts in Grade 8.8 and A325, B7 stud bolts with 2H nuts, A2 and A4 stainless fasteners, anchor bolts, threaded rod and the matching nuts and washers. Larger diameters, longer lengths, special materials and coated items can be sourced through our supplier network with a clear delivery time.

When enquiring, please give the thread size and pitch or TPI, length, grade or material, finish, and quantity, or send the flange size and class if you need bolt sets for a flanged joint. For help choosing the right grade and coating, Read our buying guide.

Orders can be placed through our request a quote page, by email to sales@diode.sa, or on WhatsApp at +966 56 838 3649. Stock items ship from Dammam to Al Khobar, Jubail, Riyadh, Jeddah and other cities, and we export to Bahrain, Qatar, Kuwait, the UAE and Oman with the documents needed for customs.

Do you manufacture fasteners?
No. Diode Trading EST is a supplier. We stock fasteners made by established manufacturers and supply them from Dammam.

Do you sell small quantities?
Yes. Fasteners are supplied by the piece, by the box or in bulk depending on the item.

What do you need for a quotation?
Thread size, length, grade or material, finish, head type and quantity, or the flange size and class for bolt sets.

Do you deliver across the GCC?
Yes. We ship from Dammam to customers in Bahrain, Qatar, Kuwait, the UAE and Oman.