Hex Bolts
Hex head bolts to ASME B18.2.1 in UNC and UNF threads, from #4 up to 1-1/2 in. The range covers Grade 5 and Grade 8 steel (10B21, 35CrMo), 304 and 316 stainless in A2-70 / A4-80, and titanium Grades 2–5, with plain, zinc plated, yellow zinc, black oxide, black zinc and hot-dip galvanized finishes. Structural, machinery and automotive specifications including ASTM A325 and A193 are supported — send your standard, size and quantity for a quote.
Marine Grade Hex Head Bolt 316 Stainless Steel UNC Plain Finish A4-70 ASME B18.2.1
High Strength A2-70 Hex Bolt UNC 304 SS Plain Finish for Automotive Frame
UNC Hexagon Head Bolt 304 Stainless Steel Plain Finish A2-70 for Machinery
Hexagon Head Bolt for Construction 304 Stainless Steel UNC Plain Finish A2-70 Full Thread
UNC Hex Head Bolt 304 Stainless Steel Natural Finish A2-70 High Strength Hex Bolt
304 SS Hex Head Bolt UNC Plain Finish A2-70 Bulk Pack 100pcs
304 SS Hex Head Bolt UNF UNC Plain Finish A2-70 ASME B18.2.1
UNF Natural Finish 304 Stainless Steel Hexagon Head Bolt A2-70 Fine Thread
UNC Hexagon Head Bolt 304 Stainless Steel Natural Finish A2-70 Full Thread Hex Bolt
304 Stainless Steel Hex Head Bolt UNF A2-70 ASME B18.2.1 Full Thread
UNC Hexagon Head Bolt 304 Stainless Steel Natural Finish A2-70 Heavy Duty Full Thread Hex Bolt
ASME B18.2.1 304 Stainless Steel Hexagon Head Bolt UNC Plain Finish A2-70 Full Thread
UNF Hex Head Bolt 304 Stainless Steel Plain Finish A2-70 ASME B18.2.1 Fine Thread Hexagon Bolt
UNC Coarse Thread Hex Bolt 304 SS Plain Finish A2-70 ASME B18.2.1 Sizes
Black Zinc Plated Hexagon Head Bolt UNC Grade 8 10B21 Steel Hex Bolt
Black Zinc Grade 8 Hexagon Head Bolt UNC 10B21 Steel Bulk Pack Hex Bolt
UNC Hex Head Bolt 304 SS Plain Finish A2-70 ASME B18.2.1 Coarse Thread Hex Bolt
Grade 8 Hex Head Bolt for Automotive UNC Black Oxide 10B21 Steel ASME B18.2.1
10B21 Steel Hex Head Bolt UNC Black Oxide Grade 8 ASME B18.2.1 Fine Finish
304 Stainless Steel Hex Head Bolt UNF A2-70 ASME B18.2.1 Fine Thread
10B21 Carbon Steel Hex Bolt UNC Black Zinc Grade 8 ASME B18.2.1 Hexagon Head Bolt
Titanium Hex Bolts Grade 1 Grade 2 Grade 3 Grade 4 ASTM B348 UNC UNF Thread ASME B18.2.1 Plain Natural Color Fastener
Grade 2 Titanium Hex Head Bolts UNC UNF ASME B18.2.1 Plain Natural Mill Finish High Strength Corrosion Resistant Fasteners
Titanium Hexagon Head Bolts Grade 1 Grade 2 Grade 3 Grade 4 UNC UNF ASME B18.2.1 Plain Natural Finish Uncoated High Strength
Buying Guide
Common Questions
What information do you need to quote this series?
Share the standard, thread size, length, material, grade, finish and quantity. For non-standard parts, a drawing or sample helps us confirm production details faster.
Can you make sizes or materials not listed here?
Yes. We manufacture to drawing and to sample. Send your specification through the RFQ form and we will confirm feasibility, MOQ and lead time.
What inspection and material documents can you provide?
Material test certificates, dimensional inspection reports and coating reports are available on request, depending on the material and finish of your order.
What is the MOQ, and can I get samples first?
MOQ depends on size, material and finish — standard catalog sizes start lower, and custom parts are quoted per drawing. Samples are available for most standard items; mention sampling when you send the RFQ and we will confirm.
How long does production and delivery take?
Lead time is confirmed per order with your quotation. Coated and custom parts need additional production and surface-treatment time. Share your target delivery date in the RFQ and we will confirm whether we can meet it before you commit.
Can't find the exact spec?
We manufacture standard and custom fasteners to order. Tell us the size, material, grade, finish and quantity — or send your drawing — and we will confirm MOQ and lead time.
