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Page 1 of 3 Fastenal Product Standard REV -03 Date: May 6, 2016 C.1000.ECO.CER

1. SCOPE

a. This specification covers the basic requirements for REACH and RoHS compliant epoxy-modified fluorocarbon [ceramic] surface processing technology that prevents , in applications with ACQ lumber and concrete and consists of a three layer process: a metallic layer, and a baked ceramic surface , applied in two layers.

b. The top coat is applied by conventional dip-spin or method which can be handled through a cleaning, coating and baking operation and which is not adversely affected by baking temperatures below 428° F (220° C). The metallic zinc layer is applied through the means of

2. PROCESS REQUIREMENTS

a. Fasteners made from that have been heat treated to a core hardness of 40 HRC and above or case hardened steel fasteners, shall be subsequently process to sufficient to minimize the risk of hydrogen embrittlement. One such accepted method is to bake at 350°F to 450° F (177°C - 232°C), within 1-4 hours after the electroplated zinc layer and prior to the ceramic layers, for a sufficient duration to reduce hydrogen embrittlement.

b. Prior to coating, the parts shall be free from oil, scale and similar foreign materials. The cleaning process shall have no detrimental effect on the base material. Any process used for cleaning such as acid pickling which can promote hydrogen absorption shall be prohibited. Written approval from Fastenal Quality Control will be required for this exception.

3. COATING REQUIREMENTS

a. Appearance – i. The coating shall have a uniform appearance free from tears, blisters, uncoated areas, and other discontinuities which may affect the appearance or performance of the coating.

ii. The color shall be silver-gray unless otherwise specified. See Figure 2

iii. The coating shall not be tacky to the touch and shall not leave particulate residue on equipment hands or gloves.

Page 2 of 3 Fastenal Product Standard REV -03 Date: May 6, 2016 C.1000.ECO.CER

b. The complete finish, including the topcoat shall be free of , cadmium, lead, barium and mercury, as well as meet the requirements of EU Directives on End of Life Vehicles (ELV) and Electrical Equipment (RoHS).

c. Topcoat – A baked ceramic topcoat applied over chemical conversion layer, over a metallic zinc layer is required, and must meet the requirements defined in this specification.

d. Thickness - The coating shall not have any adverse effects on normal installation and removal practices. For reference, typical metallic zinc layer of 0.00008” to 0.0002” (2-5 µm), and the baked ceramic layer is a double layer, applied independently, with a thickness of approximately 0.0008” to 0.0011” (20-30 µm). Thicknesses are based on an average of individual measurements when measured on the significant surface as defined by ASTM F1941 or ISO 10683. See Figure 1

e. Adhesion – The coating shall meet the adhesion requirements prescribed in ASTM F1136 or ISO 10683. Wood and lag screws shall not tear, peel or flake during ACQ Lumber drive testing. Sheet screws shall not tear, peel or flake during sheet metal drill testing, per IFI 113. Self drillings crews shall not tear, peel or flake during sheet metal drill testing, per IFI 113

f. Corrosion Resistance – The coating shall be capable of withstanding exposure to salt spray when tested in accordance with ASTM B117 or ISO 9227 to the minimum hours specified in Table 1 prior to red . Unless otherwise defined, acceptable corrosion resistance shall be Rust Grade 6 or higher per ASTM D610 on significant surfaces.

Figure 1

Page 3 of 3 Fastenal Product Standard REV -03 Date: May 6, 2016 C.1000.ECO.CER

Figure 2

g. Coating applied shall not be allowed to pool into the drive recess of the screws. The screws shall be capable of meeting the minimum torsion requirements of the applicable product specification, using the relevant drive bit without stripping out the drive recess. Torsion failure shall occur in the screw, at any location below the recess depth of the drive, (as if the screw was uncoated).

Table 1 Salt Spray Requirements Product Description and Size Minimum Salt Spray Hours Bimetal Self Drilling Screws and Sheet Metal 1000 (Red Rust) Screws

h. There shall be no signs of blistering after salt spray testing.

i. Cathodic Protection - The cathodic protection capability of the coating shall be tested utilizing the above for a duration of 72 hours with a specimen which has been scratched down to the base metal. The scratch shall have a maximum width of 0.02” (0.5mm). After the salt spray test, there shall be no red rust in scratched area.

4. PERFORMANCE REQUIREMENT a. Self drilling Screws shall exhibit no signs of coating flaking, peeling or other damage that results in exposed base metal of the screw, testing per IFI 113.