5/8-18x4" Grade 8 Hex Flange Frame Bolts Phos & Oil

Product Description

Part Number: 62F400BFL8P
Diameter/Pitch: 5/8"-18
Length Under Head: 4"
Grade: Grade 8
Finish: Black Phosphate & Oil
Thread Series: Fine (UNF)
Threading: Partially threaded
Wrench Size: 15/16"

BoltsandNuts.com

5/8-18x4" Grade 8 Hex Flange Frame Bolts Phos & Oil

SKU: 62F400BFL8P

Product Description

Part Number: 62F400BFL8P
Diameter/Pitch: 5/8"-18
Length Under Head: 4"
Grade: Grade 8
Finish: Black Phosphate & Oil
Thread Series: Fine (UNF)
Threading: Partially threaded
Wrench Size: 15/16"

B&N Pro eligible item. Save 10% when you join Pro. Learn more.

Pack Size

1

$11.59/pc

Popular

5

$8.69/pc

10

$7.39/pc

25

$5.91/pc

Best Value

70

$4.43/pc

$11.59

B&N Pro $0.00 Member Price

(Shipping $8.95) Add [amount] more for FREE SHIPPING

Free QR Storage Label Included with Most Items

Scan the QR and it will lead to that exact item for easy reordering!

30 Day Returns

Accepted on Most Items. Learn More

Thread Size	5/8"-18
Material	Medium carbon alloy steel, quenched and tempered
Wrench Size	15/16"
Head Marking	Six radial lines on head
Proof Load (min)	30,710 lbf

Length	4"
Finish	Phosphate & Oil
Thread Series	Fine (UNF)
Thread Class	2A
Hardness	Rockwell C33–C39

Grade	Grade 8
Head Type	Hex Flange (Frame Bolt)
Threading	Partially threaded
Tensile Strength (min)	150,000 psi
Specifications Met	IFI-111, SAE J429 Grade 8

Technical Drawing

Not to scale · ASME B18.2.1 / IFI-111 · See table for exact dimensions

Technical Dimensions

Length Under Flange	4"
Major Thread Dia.	0.625"
Threads Per Inch	18 TPI
Thread Class	2A
Proof Load	30,710 lbf
Min. Tensile Strength	150,000 psi
Yield Strength	130,000 psi
Hardness	Rockwell C33–C39
Material	Medium carbon alloy steel, quenched and tempered

Hex head with an integral washer-style flange that spreads clamp load over a wider area, often removing the need for a separate washer. Partially threaded shank, plain under the head, with unified fine (UNF) threads.

Dimensions conform to ASME B18.2.1 / IFI-111 and may vary within specified manufacturing tolerances.