Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.

The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.

Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.

Manufacturer of hex nuts and heavy hex nuts, both in metric and inch sizes

Manufacturer specialized in locknuts

Manufacturer of locknuts. Metric and inch sizes.

Manufacturer and distributor of standard and special nuts, both in metric and imperial sizes

Manufacturer of hexagon nuts, weld nuts, square nuts and wing nuts.

Material: Stainless Steel, Carbon Steel, Brass C2700/C2600 Silicon Bronze 651

Size: M1.6-M24, #0-1"

Distributor and importer of nylon insert and all metal locknuts

Distributor of nuts: hexagonal, self-locking, dome, welding and with flange

Manufacturer of nuts: flanges, lock, welding, with washer

Manufacturer and importer specialized in special, structural and automotive nuts

Earnest Machine is a master distributor of fasteners for the industrial distribution market. We aim to create the best customer experience possible by putting our customers’ needs first. With a wide range of products and services, we provide customers with more options, making managing their fastener program easier. 

We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).

Distributor of aerospace fasteners

Manufacturer specialized in hexagon nuts. Size from M4 to M30

Manufacturer specialized both in standard and special nuts

Manufacturing of special fasteners and machined (inconel, monel, super duplex, hastelloy, titanium, nimonic, B16 and Durehete)  

Manufacturing, stocking and distributing petro-chemical grade studbolt assemblies and fasteners.

Manufacturer of nuts from 2mm to 90mm, with metric and inch thread in different materials such as brass, steel, stainless steel, aluminium.

Manufacturer specialized in nuts: lock nuts, domed cap nuts, flanged nuts, Tee - nuts, round nuts

Distributor of nuts for the Oil & Gas field, metric and inch sizes according to  ASTM A194, ASME B18.2.2, DIN 934 H=D, EN 14399 Class 10 specifications. 

Manufacturer of threaded items, mainly screwed rods, engineering studs, bright bolts and sets and special items according to customer specifications

Manufacturer of gaskets and inch fasteners

Manufacturer of inch nuts: hexagonal, self locking, welding, with flange.. etc..

Manufacturer and stockist of all types of locknuts. Metric and inch sizes

Leader manufacturer of hex nuts, cap nuts, wing nuts, flange nuts, nylon insert nuts, weld nuts, square nuts, wheel nuts, etc...

Manufacturer of screws, nuts, washers and threaded rods

Manufacturer and distributor of standard and special fasteners, specialized in nuts

Distributor specialized in inch thread fasteners

Distributor of inch sized fasteners, oil and gas fasteners and turned special screws

Manufacturer of nuts for automotive: hexagon nuts, flange nuts, wheel nuts, castel nuts, lock nuts, weld nuts

Manufacturer of hex nuts, welding nuts, castel nuts and special nuts

Distributor of inch fasteners as per British and American standards

Manufacturer of locknuts in the following sizes: from 3/8" to 1.5" and from M10 to M36

Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms

Manufacturer of stainless steel nuts

Manufacturer of inch bolts, nuts and stud bolts. Diameter from 3/4″ up to 26″ and lenghts from 1″ up to 36″

Manufacturer of specialized in standard and special nuts for automotive

Manufacturer of nylon insert nuts and turned nuts. From 3/4' thru 2 1/2' ID - M12 thru M68.

Manufacturer of nuts: self locking nuts, nylon lock nuts, metal lock nuts flange lock nuts, dome cap nuts, weld nuts DIN 1624 Tee nuts, wing nuts, cage nuts and all kind of special nuts.

Manufacurer specialized in threaded inserts and nuts

Specialized manufacturer of steel hex nuts and bolts, HDG fasteners and for steel construction with an yearly production capacity of 110,000 M/T