Eye Nut 316 Marine Grade S0321-0

316 Stainless Steel UNC Eye Nuts

Price range: $3.76 through $87.23

A is the nominal UNC thread size at the base. B is the eye opening diameter. C is the base height. X, Y and Z are the overall dimensions shown in the drawing.

Need technical information?

Questions about specifications, installation, compatibility, pricing, or shipping?

Request Product Information
SKU: FAM-S0321-UNC Category:

316 Stainless Steel UNC Eye Nuts

A is the nominal UNC thread size at the base. B is the eye opening diameter. C is the base height. X, Y and Z are the overall dimensions shown in the drawing.

SSM Product Information

Key Specifications

Family SKUFAM-S0321-UNC
Ordering seriesS0321-UNC
Material316 Stainless Steel
Available ordering choices7
SSM Technical Specifications

Dimensional Drawing

316 Stainless Steel UNC Eye Nuts manufacturer dimensional drawing

A is the nominal UNC thread size at the base. B is the eye opening diameter. C is the base height. X, Y and Z are the overall dimensions shown in the drawing.

Available Sizes

ITEMA threadBCX heightY lengthZ widthWLL lbWT lb
S0321-00071/4″0.62″0.39″1.20″1.08″0.50″4000.04
S0321-00085/16″0.75″0.56″1.55″1.29″0.62″7000.08
S0321-00103/8″0.97″0.62″1.92″1.60″0.76″1,0000.13
S0321-00131/2″1.17″0.87″2.38″1.97″0.95″2,0000.26
S0321-00165/8″1.34″1.00″2.81″2.44″1.19″3,2000.53
S0321-00203/4″1.57″1.22″3.36″2.74″1.32″4,7000.75
S0321-00251″1.95″1.43″4.16″3.52″1.70″7,5001.49

Download corrected specification (PDF)

Confirm the required ordering SKU, dimensions, load rating and application before purchase.

Dimensions are nominal (±3%) and subject to change. All dimensions are inches except metric thread designations. WLL = working load limit; WT = unit weight.

Checked against Suncor’s product page and manufacturer specification on October 16, 2026.

Installation & Product Questions

How do I select the correct size?

Use the exact ordering SKU and compare every listed dimension with your existing hardware or installation. Confirm thread size, pin or rope diameter, and overall dimensions before ordering.

What should I verify before installation?

Confirm alloy, dimensions, mating hardware, mounting surface, and the intended marine or architectural application. Use compatible fasteners and follow applicable installation requirements.

What inspection and maintenance are recommended?

Inspect the complete assembly before use and periodically afterward. Replace components showing distortion, cracks, damaged threads, corrosion, excessive wear, or unreliable locking action. Rinse salt and contamination away with fresh water.

Need technical information? Please request product information before ordering if fit, loading, installation, or compatibility is uncertain.

Related Products