Spike & Washer Detailed Specifications

Standard Spike Sizing

The table below lists our standard ceramic spike sizes (also known as spears or studs), with each part identified by its A, B, C, and D dimensions, overall length (L1, reference only), shaft length (L2), tip style, and material. We supply these spikes fabricated from either 96% alumina (AC-AL960) or high-purity 99.5% alumina (AC-AL8020). Use this reference to identify the exact configuration you need or as a guide when submitting a custom order

Drawing of a ceramic stud with its dimensions lettered A, B, C, D, L1 and L2, and the Hole (H) and Notch (N) end options

Part #	A	B	C	D	L1 (Ref Only)	L2	Style	Material
1580	1 5/16	3/4	Sharp	0.375	4 1/4	2 3/4	Hole	AC-AL8020 (99.50%)
573	1 5/16	3/4	Sharp	0.375	4 1/4	2 3/4	Notch	AC-AL8020 (99.50%)
565	1 5/16	3/4	Sharp	0.375	5 1/4	3 3/4	Hole	AC-AL8020 (99.50%)
113	1 5/16	3/4	Sharp	0.375	5 1/4	3 3/4	Notch	AC-AL8020 (99.50%)
2159	1 5/16	3/4	Sharp	0.375	6	4 1/2	Hole	AC-AL8020 (99.50%)
1716	1 5/16	3/4	Sharp	0.375	6 1/4	4 3/4	Hole	AC-AL8020 (99.50%)
114	1 5/16	3/4	Sharp	0.375	6 1/4	4 3/4	Notch	AC-AL8020 (99.50%)
2247	1 5/16	3/4	Sharp	0.375	7	5 1/2	Hole	AC-AL8020 (99.50%)
1715	1 5/16	3/4	Sharp	0.375	7 1/4	5 3/4	Hole	AC-AL8020 (99.50%)
115	1 5/16	3/4	Sharp	0.375	7 1/4	5 3/4	Notch	AC-AL8020 (99.50%)
2288	1 5/16	3/4	Sharp	0.375	8	6 1/2	Hole	AC-AL960 (96%)
1480	1 5/16	3/4	Sharp	0.375	8	6 1/2	Hole	AC-AL8020 (99.50%)
1723	1 5/16	3/4	Sharp	0.375	8	6 1/2	Notch	AC-AL8020 (99.50%)
1669	1 5/16	3/4	Sharp	0.375	8 1/4	6 3/4	Hole	AC-AL8020 (99.50%)
116	1 5/16	3/4	Sharp	0.375	8 1/4	6 3/4	Notch	AC-AL8020 (99.50%)
1717	1 5/16	3/4	Sharp	0.375	9 1/4	7 3/4	Hole	AC-AL8020 (99.50%)
117	1 5/16	3/4	Sharp	0.375	9 1/4	7 3/4	Notch	AC-AL8020 (99.50%)
1984	1 5/16	3/4	Sharp	0.375	10	8 1/2	Hole	AC-AL8020 (99.50%)
1718	1 5/16	3/4	Sharp	0.375	10 1/4	8 3/4	Hole	AC-AL8020 (99.50%)
118	1 5/16	3/4	Sharp	0.375	10 1/4	8 3/4	Notch	AC-AL8020 (99.50%)
1719	1 5/16	3/4	Sharp	0.375	11 1/4	9 3/4	Hole	AC-AL8020 (99.50%)
119	1 5/16	3/4	Sharp	0.375	11 1/4	9 3/4	Notch	AC-AL8020 (99.50%)
1724	1 5/16	3/4	Sharp	0.375	11 5/6	10 1/3	Hole	AC-AL8020 (99.50%)
1564	1 5/16	3/4	Sharp	0.375	11 5/6	10 1/3	Notch	AC-AL8020 (99.50%)
1907	1 5/16	3/4	Sharp	0.375	12 1/2	14	Notch	AC-AL8020 (99.50%)
1720	1 5/16	3/4	Sharp	0.375	12 1/4	10 3/4	Hole	AC-AL8020 (99.50%)
120	1 5/16	3/4	Sharp	0.375	12 1/4	10 3/4	Notch	AC-AL8020 (99.50%)
1679	1 5/16	3/4	Sharp	0.375	12 1/2	11	Hole	AC-AL8020 (99.50%)
1721	1 5/16	3/4	Sharp	0.375	13 1/4	11 3/4	Hole	AC-AL8020 (99.50%)
1128	1 5/16	3/4	Sharp	0.375	13 1/4	11 3/4	Notch	AC-AL8020 (99.50%)
1722	1 5/16	3/4	Sharp	0.375	15 1/4	13 3/4	Hole	AC-AL8020 (99.50%)
1651	1 5/16	3/4	Sharp	0.375	15 1/4	13 3/4	Notch	AC-AL8020 (99.50%)
1725	1 5/16	3/4	Sharp	0.375	16	14 1/2	Hole	AC-AL8020 (99.50%)
1579	1 5/16	3/4	Sharp	0.375	16	14 1/2	Notch	AC-AL8020 (99.50%)
1289	1 5/16	3/4	Sharp	0.375	18 1/4	16 3/4	Hole	AC-AL8020 (99.50%)
578	1 5/16	3/4	Sharp	0.375	18 1/4	16 3/4	Notch	AC-AL8020 (99.50%)

Example of Custom Order Info Needed

If your application requires dimensions outside our standard sizing table, we can fabricate a custom spike to your specifications. The example below shows the information needed to quote a custom part — dimensions A through D, shaft length (LS), tip style, and material. Use this as a template when submitting your custom order request.

Ceramic Spike

Part # = Custom
A = 1 1/2
B = 7/8
C = Radius
D = .400
LS = 8 3/4
Style = Hole
Material = 96% Alumina

Ceramic Lock Washers

The drawings below depict our standard ceramic washer sizes. Use this reference to identify the exact configuration you need when submitting an order.

Drawing of ceramic lock washer ACT-418 in 96% alumina: 2 in. diameter, 1/4 in. thick, with a keyhole slot

Drawing of ceramic lock washer ACT-417 in 96% alumina: 1 1/2 in. diameter, .25 in. thick, with a keyhole slot

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