Specification Brand : GRAINGER APPROVED BulletPoint : Price For: Each System of Measurement: Inch Head Type: Knurled Item: Thumb Screw Rockwell Hardness: B68 to B71 Tensile Strength: 57, 000 Class: 2A Thread Size: 1/4-20 Material: Steel Length: 3/4" Finish: Black Oxide Head Height: 1/2" Head Dia.: 5/8" Country of Origin (subject to change): United States BulletPoint1 : Price For: Each System of Measurement: Inch Rockwell Hardness: B85 to B95 Finish: Passivated Material: 18-8 Stainless Steel Tensile Strength: 80, 000 Head Type: Knurled Item: Thumb Screw Class: 2A Shoulder Dia.: 31/64" Thread Size: 1/4-20 Length: 3/8" Head Thickness: 0.250" Head Width: 1/4" Shoulder Length: 1/8" Head Height: 1/4" Head Dia.: 37/64" BulletPoint2 : Country of Origin (subject to change): United States DriveSystem : Thumb ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier : 7440105270053 ItemName : Thumb Screw, Knurl, 1/4-20x3/8 L, Pk5 ItemPackageQuantity : 1 ItemTypeKeyword : thumb-screws Manufacturer : GRAINGER APPROVED Material : Stainless Steel MeasurementSystem : Imperial MetalType : Stainless Steel MetalType1 : Zinc MetalType2 : Alloy Steel ModelNumber : Z2126 NumberOfItems : 1 PartNumber : WFTSSS18 ProductDescription : 'Thumb Screw, Knurled Small Diameter With Shoulder Head Type, 18-8 Stainless Steel, Thread Size 1/4-20, Length 3/8 In, Head Width 1/4 In, Head Thickness 1/4 In, Head Diameter 37/64 In, Head Height 1/4 In, Shoulder Dia 31/64 In, Screw Shoulder Length 1/8 In, Class 2A, Rockwell Hardness B85-B95, Tensile Strength 80, 000 PSI, Passivated Finish, Package 5' ProductSiteLaunchDate : 2014-11-01T12:00:00.000-08:00 Size : 3/8" SupplierDeclaredDgHzRegulation : unknown UnitCount : 1 UnspscCode : 31161500