5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 20)

Accu Product Code (APC): SIM-5/16-18-1.1/2-A2-BL

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5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 20)

Accu Product Code (APC): SIM-5/16-18-1.1/2-A2-BL

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Accu Product Code (APC): SIM-5/16-18-1.1/2-A2-BL
Thread Size: 5/16-18 UNC
Length (L): 1.1/2 inch
Head Diameter (D): 0.698 inch Tolerance: +0/-0.032 inch
Material: Stainless Steel - (A2)
Finish: Matte Black
Drive Size: PH4
Head Length (H): 0.183 inch Tolerance: +0/-0.021 inch
Manufacturing Standard: ASME B18.6.3
Material Family: Stainless Steel
System of Measurement: Imperial
Thread Pitch: 18 TPI
Weight per 100 Units: 1.55 kg

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5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) Description

The 5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) has the following features:

Drive Size: PH4
Matte Black Finish
Head Diameter (D): 0.698 inch
Head Diameter (D) Tolerance: +0/-0.032 inch
Head Length (H): 0.183 inch
Head Length (H) Tolerance: +0/-0.021 inch
Length (L): 1.1/2 inch
Manufacturing Standard: ASME B18.6.3
Stainless Steel - (A2)
Stainless Steel Material Family
System of Measurement: Imperial
Thread Pitch: 18 TPI
Thread Size: 5/16-18 UNC

Discover more about the Imperial Phillips Mushroom Screws range.

Phillips Mushroom Screws feature an enlarged mushroom head, and a Phillips Drive for use with standard Phillips Drive Bits.

Imperial Phillips Mushroom Screws

Mushroom Screws within this range are available in imperial thread sizes ranging from No.6 to 3/8 inch.

Thread-Locking And Finish Options.

Maximise the performance of your Imperial Phillips Mushroom Screws with Accu’s pre-applied thread-locking patches, designed to prevent loosening caused by vibration. Choose AccuLock Threadlocker for fundamental security, Anu-Lok 180 for superior strength, or Precote 80 for extreme conditions. Customise further with AccuBlack chemical blackening, delivering a high-end, low-glare finish.

Shipping Information

Shipping Destinations:

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Weight (100 items):

1.549kg

Component History

Product First Available:

Sunday, June 28, 2015

Stock Last Updated:

12:21 AMThursday, June 4, 2026

Specification Last Updated:

Wednesday, June 3, 2026

Barcodes

APC (Accu Product Code):

SIM-5/16-18-1.1/2-A2-BL

EAN13 (International Article No.):

5057195077046

ASIN (Amazon Stock Identification No.):

ASIN not defined.

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5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 20)

5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) 5/16-18 UNC x 1.1/2 Inch Phillips Mushroom Screws (ASME B18.6.3) - Black Stainless Steel (A2) (pack of 20)

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